Compare Dyson Ball Animal 3 Extra Upright Vacuum vs Bissell ProHeat 2X Revolution Upright Carpet Cleaner

P1 Dyson Ball Animal 3 Extra Upright Vacuum
P2 Bissell ProHeat 2X Revolution Upright Carpet Cleaner

Comparison Takeaways

Dyson Ball Animal 3 Extra Upright Vacuum

Where It Has the Edge

  • Emptying and Mess Control is 4.7 vs 3.3. Hygienic, no-touch emptying is a consistent positive, with reviewers noting you can eject debris without handling dust or...
  • Storage footprint and upright-stand stability is 4.3 vs 2.9. Despite being a full-size corded upright, reviewers describe it as relatively slim/short and easy to tuck into a...
  • Suction and Airflow is 4.8 vs 3.6. Repeated testing and reviews describe extremely strong suction and airflow, including top crevice and embedded-dirt results. The upside...
  • Cord length is 4.8 vs 3.9. Multiple reviews cite an extra-long 35-foot cord, giving a large room-to-room cleaning radius. Cord length is consistently positioned...

Bissell ProHeat 2X Revolution Upright Carpet Cleaner

Where It Has the Edge

  • Weight is 3.5 vs 2.4. Weight is commonly described as manageable while pushing but noticeable when carrying—especially once tanks are full. Several reviewers...
  • Price and Value is 4.0 vs 3.2. Value is frequently praised—especially when discounted—because cleaning results approach pricier machines. A few reviewers still find it expensive...
  • Under-Furniture Pickup is 4.4 vs 3.8. At least one review notes a relatively low profile that helps it reach under furniture better than bulkier...
  • Stair Cleaning is 4.2 vs 3.6. Stair cleaning is frequently called out as a strength when using the hose and stair tool; results are...
Average score
Product 1: Dyson Ball Animal 3 Extra...
4.2
Product 2: Bissell ProHeat 2X Revolution Upright...
3.9
Accessories and Tools
Product 1: Dyson Ball Animal 3 Extra...
4.4

The Extra bundle's pet-focused tools (pet groom and turbine tool) and core tools (crevice/brush, stair) are widely viewed as useful. Value depends on how often you will use the specialized pet attachments.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Most reviewers like the included tool set—commonly highlighting the 2‑in‑1 pet upholstery tool (wet/dry) plus stair/tough-stain tools and a storage bag—though one comparison review notes certain configurations ship with few or no accessories and tool usefulness varies by model.

Aesthetic design and finish
Product 1: Dyson Ball Animal 3 Extra...
4.5

At least one long-form review explicitly calls the vacuum stylish, and the design is generally treated as premium-looking. Color and trim differences are also noted between package variants.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Airflow blowback
Product 1: Dyson Ball Animal 3 Extra...
2.9

A recurring minor complaint is blowback or scattering with certain large debris, including spitting kernels or pushing round objects. Changing the head setting or vacuuming path is often described as reducing the issue.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.3

One test-focused review notes moderate exhaust airflow and a rear exhaust design; drying performance relies more on passes and the chosen mode than on a powerful air blast.

Area Rug Handling
Product 1: Dyson Ball Animal 3 Extra...
3.7

Strong suction can make small/thin rugs harder to vacuum and may drag them around, but the adjustable gates/air-bleed settings help. Homes with heavier rugs or more carpet generally report smoother handling.

Product 2: Bissell ProHeat 2X Revolution Upright...
2.8

Area rug results are generally good, but at least one review warns the brush action can snag or pull fibers from delicate/looped rugs—suggesting spot-testing and gentler settings when needed.

Assembly and Setup
Product 1: Dyson Ball Animal 3 Extra...
4.1

Assembly is generally described as tool-free and quick, with parts snapping into place. One reviewer found setup slightly tricky because the manual relied on photos, but still completed it in about 12 minutes.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.1

Assembly is usually quick (around 10–20 minutes) but commonly requires a screwdriver for the handle. A couple reviewers say the manual/instructions could be clearer, though setup steps are straightforward.

Bin and Bag
Product 1: Dyson Ball Animal 3 Extra...
4.5

The bagless bin is repeatedly described as large (about 0.5 gallons / 1.7 liters in reviews) and easy to monitor as it fills. Capacity helps longer cleaning sessions between empties.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Build quality and durability
Product 1: Dyson Ball Animal 3 Extra...
4.0

Reviews characterize the vacuum as dense and premium-feeling, with sturdy components and a removable brush roll design. The same build contributes to the heavier carry weight.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Build is often described as sturdy and well-made, with tanks and housings that feel robust. Minor durability-related complaints show up around dripping/leaking or fiddly tank openings rather than structural failures.

Carpet — High-Pile Pickup
Product 1: Dyson Ball Animal 3 Extra...
4.7

Reviewers say the head design and gate/vent settings help it work on thick or deep-pile carpet without stalling. It can still feel grabby in deeper-clean modes because of the high suction.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Carpet — Medium-Pile Pickup
Product 1: Dyson Ball Animal 3 Extra...
5.0

In controlled sand tests on medium-pile carpet, the vacuum scored at or near the top, indicating excellent embedded-dirt pickup. Reviewers also note it avoids bogging on thicker carpet when the head gates are opened.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Clogging and debris prevention
Product 1: Dyson Ball Animal 3 Extra...
4.5

Most reviews emphasize strong clog resistance and fewer mid-clean stoppages, even with heavy pet fur. However, very large or round debris can sometimes lodge in the head until cleared.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Comparative performance
Product 1: Dyson Ball Animal 3 Extra...
4.6

Across comparative reviews, the Ball Animal 3 Extra is portrayed as outperforming cheaper uprights in deep-clean tests and improving on earlier Dyson uprights for hard floors and hair tangles. Some comparisons still highlight tradeoffs like weight, noise, and occasional large-debris scattering.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.8

In comparisons, it often lands as a top value pick and a strong performer in its price tier, but not always the outright best. Some reviews prefer HydroSteam/Big Green for toughest stains, while one test-heavy review recommends competing machines for better overall performance per dollar.

Controls and UI
Product 1: Dyson Ball Animal 3 Extra...
4.2

Controls include multiple cleaning modes, brush-roll control, and head gate/air-bleed adjustments that help tune performance by surface. Reviewers sometimes mention a short learning curve in figuring out the best setting.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.0

Controls are generally simple and clearly labeled (mode selection plus trigger spray). The CleanShot foot button/spray is polarizing: some find it handy, others say it’s awkward to aim, messy, or not much better than extra passes.

Cord length
Product 1: Dyson Ball Animal 3 Extra...
4.8

Multiple reviews cite an extra-long 35-foot cord, giving a large room-to-room cleaning radius. Cord length is consistently positioned as a strength.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.9

Cord length is usually described as long enough for room-sized jobs (often cited around 22–25 ft), but at least one review complains the real length is shorter than advertised, and cord reach is still a limitation on larger areas.

Cord management
Product 1: Dyson Ball Animal 3 Extra...
4.2

Cord hooks and rear storage are mentioned as straightforward for wrapping and quickly releasing the cord. No one highlights a rewind feature, but basic cord handling is described as manageable.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Cord wrap/hooks or ties are mentioned as convenient for tidy storage, though they don’t solve the overall bulk of storing a full-size carpet cleaner.

Crevice / Groove Pickup (Hard Floors)
Product 1: Dyson Ball Animal 3 Extra...
4.9

Crevice testing and reviewer feedback indicate excellent groove pickup, with the Dyson scoring at or near the top for lifting sand from a deep crevice. This aligns with its high sealed suction.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Cyclone performance
Product 1: Dyson Ball Animal 3 Extra...
3.9

Cyclone performance is generally credited for maintaining strong suction and helping prevent clogs. One reviewer felt the newer cyclone setup lets filters get dirty faster than older Dyson designs, suggesting more frequent checks.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Dried-On Stain Removal
Product 1: Dyson Ball Animal 3 Extra...
4.3

Dyson's ball steering is frequently praised for tight turns and easier navigation around furniture. A few reviewers say it takes getting used to, but most find it maneuverable once familiar.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Most reviews report excellent stain-lifting on typical set-in messes (mud, wine, coffee, pet accidents) with a few passes and pre‑treating. Very old or deeply embedded stains can remain, and premium models like HydroSteam/Big Green tend to do better on the toughest jobs.

Ease of use
Product 1: Dyson Ball Animal 3 Extra...
3.9

Ease of use is boosted by strong cleaning performance, ball steering, and versatile attachments. The main usability negatives are the heavy body, occasional hard-to-push feel on carpet, and loud operation.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.4

Day-to-day use is often described as intuitive—‘like pushing a vacuum’—with simple fill/clean/empty steps. The main friction points are heft when full and occasional learning curve around solutions or CleanShot use.

Edge and Baseboard Cleaning (Hard Floors)
Product 1: Dyson Ball Animal 3 Extra...
3.7

Edge cleaning is generally good on the sides, but multiple tests note weaker pickup at the front edge or centerline near walls, sometimes needing an extra angle or pass. It is solid but not the strongest point.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Emptying and Mess Control
Product 1: Dyson Ball Animal 3 Extra...
4.7

Hygienic, no-touch emptying is a consistent positive, with reviewers noting you can eject debris without handling dust or fur. This is frequently paired with praise for the large bin.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.3

Emptying is typically quick and straightforward, yet a few reviewers report messy moments—drips after finishing, puddling if the unit is stopped on carpet, or occasional leaks/spills depending on handling.

Filtration / Dust Containment
Product 1: Dyson Ball Animal 3 Extra...
4.7

Whole-machine HEPA filtration and sealed dust containment are frequently praised, especially by pet owners and allergy-focused reviewers. Washable filters are seen as a plus for long-term ownership.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Floor Drying Time
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
3.8

Express mode is widely credited for quicker dry times, while Deep/Max modes can leave carpets damp for hours or even overnight. Reviewers often recommend extra ‘dry’ passes to speed up drying and reduce wet spots.

Floorhead design
Product 1: Dyson Ball Animal 3 Extra...
4.5

The redesigned floorhead with adjustable gates is frequently credited for better large-debris pickup and improved thick-carpet glide compared to older Dyson uprights. Tradeoffs mentioned include occasional spitting/pushing of bigger pieces and less effective reach at the very front edge for some debris.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Hair-removal channel issues
Product 1: Dyson Ball Animal 3 Extra...
2.8

A few reviewers report that hair or round debris can snag in the hair-removal comb/vanes and may require pulling it off or opening the head. It is not constant, but it is the main tangle-related annoyance mentioned.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Hair Pickup — Carpets
Product 1: Dyson Ball Animal 3 Extra...
4.8

Hair pickup on carpet is repeatedly described as excellent, with pet owners reporting noticeably better results than prior vacuums. Lab-style tests show near-complete hair collection in a few passes.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Hair‑Wrap / Tangle Resistance
Product 1: Dyson Ball Animal 3 Extra...
4.7

Detangling features (hair-removal vanes/active combing) are a standout, with multiple tests showing virtually no brush-roll wrap even with long hair. Some reviewers still mention occasional hair catching at the comb area.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Hard Floor — Fine Dust Pickup
Product 1: Dyson Ball Animal 3 Extra...
4.5

Reviews describe strong fine-dust pickup on hard floors, helped by high suction and floorhead details intended to capture small particles. It is commonly positioned as one of the better Dyson uprights for hard floors.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Hard Floor — Large Debris Intake
Product 1: Dyson Ball Animal 3 Extra...
3.9

Adjustable gates help it take in larger debris on hard floors and carpet, and many reviewers see strong pickup overall. Some tests still show it can initially spit or push items like popcorn kernels or plastic balls until the setting or approach is adjusted.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Heating element
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
3.5

Multiple reviews clarify that ‘ProHeat/HeatWave’ helps maintain warm water temperature rather than actively heating cold water; users typically add hot tap water. Some describe warm airflow, but it’s not a true steam or boiler-style heater.

Hose length
Product 1: Dyson Ball Animal 3 Extra...
4.8

A long hose and wand (15 feet cited in reviews) enables above-floor cleaning and helps reach stairs and furniture. Reviewers often highlight this reach as a practical advantage versus typical uprights.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Hose length is typically reported as adequate for stairs and spot work (often around 8 ft, with some models closer to 10 ft). For larger staircases, users may still need to reposition or carry the machine.

Maintenance requirements
Product 1: Dyson Ball Animal 3 Extra...
4.2

Maintenance is often described as easy thanks to washable filters, removable brush roll, and accessible inspection points. Some users still report periodic cleaning around the comb/mesh and more frequent filter attention than expected.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.3

Maintenance is a strong point for many: removable nozzles/covers, accessible brush rolls, and easy tank rinse-outs. A minority note annoyances like hard-to-reach tank openings or needing extra cleanup during/after use, and newer ‘turbo’ style designs improve brush access.

Maneuverability and Handling
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Despite its weight, most reviewers say it’s easy to push and steer on carpet, with good reach using the hose. Handling drawbacks show up when lifting/carrying (front-heavy feel, stairs).

Noise level
Product 1: Dyson Ball Animal 3 Extra...
2.3

Noise is a common complaint, with descriptions ranging from loud to screaming if powered on while upright. Measured sound levels in one test place it on the louder side of comparable uprights.

Product 2: Bissell ProHeat 2X Revolution Upright...
2.8

Noise is a recurring complaint: multiple reviewers call it loud (some measured around the low‑80 dB range). ‘Turbo’ updates are described as only modestly quieter in real-world use.

Odor control
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
4.0

Many report carpets smell fresher after cleaning and solutions leave a pleasant scent, but strong pet odors may not disappear completely in one pass and can linger faintly.

Onboard tool storage
Product 1: Dyson Ball Animal 3 Extra...
3.9

Core tools like the crevice/brush and stair tool are stored on the vacuum, which reviewers find convenient. Some pet accessories are not stored onboard and may need separate storage.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.3

Tool storage is mixed: several reviews mention a separate bag and limited onboard storage, which is fine for closets but less convenient if you want everything attached to the unit.

Overall opinion
Product 1: Dyson Ball Animal 3 Extra...
4.6

Overall sentiment is strongly positive, with multiple reviews rating it around 9/10 or calling it a top Dyson upright, especially for pets and carpets. The recurring negatives are price, weight, and noise.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Across reviewers, sentiment is mostly positive: many call it a strong, practical deep-cleaner that refreshes carpets and furniture, while a few lab-style tests rate it only mid-pack and question whether it’s the best buy versus cheaper rivals.

Packaging quality
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Unboxing feedback is generally positive: reviewers mention compact packaging and neatly organized accessories, making setup feel straightforward.

Pet-Ready Features
Product 1: Dyson Ball Animal 3 Extra...
4.5

Pet-focused performance is a highlight: strong hair pickup, detangling design, and HEPA filtration are repeatedly called out for reducing fur and dander. The pet grooming tool is polarizing, with one reviewer disliking the stiff bristles and others finding it intriguing or useful.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.4

Pet-focused features (pet tools, targeted solutions, odor/stain focus) are a major selling point. Most say it handles accidents and pet messes well; a few note the hair-trap/tool design isn’t perfect and some hair can still end up in the hose.

Price and Value
Product 1: Dyson Ball Animal 3 Extra...
3.2

Multiple sources call it expensive, and one comparison suggests the Extra bundle is not always worth the full premium versus the base model. Reviewers who prioritize pet hair and deep cleaning are more likely to view the cost as justified, especially on sale.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.0

Value is frequently praised—especially when discounted—because cleaning results approach pricier machines. A few reviewers still find it expensive for a corded, bulky cleaner or recommend cheaper alternatives with similar results.

Self-cleaning cycle
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
4.7

A self-rinse/self-clean style tray/base is mentioned as helpful for flushing the system after a job, reducing post-cleaning hassle and helping avoid funky residue in the machine.

Solution / Liquid system
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
4.0

Mode settings (Max/Deep/Express) and solution delivery get good marks for flexibility, but some reviewers say Max uses a lot of water/solution and the CleanShot pre-treat can feel wasteful or ineffective compared with extra passes.

Stair Cleaning
Product 1: Dyson Ball Animal 3 Extra...
3.6

The long hose/wand helps with stair reach, and it can clean stairs effectively with the right attachment. However, several reviewers caution that the heavy upright body can make stair cleaning awkward, especially for limited mobility or narrow stairs.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Stair cleaning is frequently called out as a strength when using the hose and stair tool; results are good, but the unit’s weight can make carrying it between flights less convenient.

Steam Cleaning
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
1.0

Several comparisons emphasize this is not a steam cleaner; Bissell’s HydroSteam models add steam for tougher, older stains, but the ProHeat 2X Revolution relies on hot-water extraction instead.

Storage footprint and upright-stand stability
Product 1: Dyson Ball Animal 3 Extra...
4.3

Despite being a full-size corded upright, reviewers describe it as relatively slim/short and easy to tuck into a corner. One note: turning it on while still upright can be jarringly loud.

Product 2: Bissell ProHeat 2X Revolution Upright...
2.9

Storage is a common drawback: reviewers describe it as bulky and needing a dedicated closet/corner, even though it stands upright. The cord can wrap neatly, but overall footprint is still sizable.

Suction and Airflow
Product 1: Dyson Ball Animal 3 Extra...
4.8

Repeated testing and reviews describe extremely strong suction and airflow, including top crevice and embedded-dirt results. The upside is deep cleaning; the downside is that the power can make it harder to push and may tug on thin rugs.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.6

Extraction/suction feels strong to many users during cleaning, but measured tests in a couple reviews put nozzle and hose suction below average. Net takeaway: adequate for pulling dirty water out, but not class‑leading.

Suitability for heavy-duty use
Product 1: Dyson Ball Animal 3 Extra...
4.7

Reviewers describe it as a heavy-duty, industrial-strength option for shedding pets and embedded dirt, suited to larger or carpet-heavy homes. The heavy weight and loudness are the main heavy-duty tradeoffs.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Suitability for small spaces
Product 1: Dyson Ball Animal 3 Extra...
4.5

A narrower cleaning path and tight turning help it maneuver in tighter rooms compared with bulkier uprights. The heavy body remains a consideration for small-space storage and carrying.

Product 2: Bissell ProHeat 2X Revolution Upright...
No score yet
Support and Reliability
Product 1: Dyson Ball Animal 3 Extra...
4.5

Support is referenced via a 5-year warranty and mentions of Dyson customer support. No review flags major reliability failures, though long-term durability claims are mostly implied rather than proven.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.7

Several reviews call out strong warranty coverage (commonly 5–6 years) and accessible support options, which helps offset concerns about owning a heavier, more complex cleaner.

Tool-change simplicity
Product 1: Dyson Ball Animal 3 Extra...
4.4

Tool changes are generally described as simple, using quick-release buttons to swap between wand, hose, and attachments. Reviewers note a short learning curve, but day-to-day changes are straightforward.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.5

Attaching the hose and swapping tools is generally easy and quick, with click-in fittings that make spot and upholstery work straightforward.

Under-Furniture Pickup
Product 1: Dyson Ball Animal 3 Extra...
3.8

One review notes it can reach under a bed a little and handle awkward angles thanks to ball steering. It still will not replace a low-profile design for deep under-furniture cleaning.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.4

At least one review notes a relatively low profile that helps it reach under furniture better than bulkier carpet cleaners, though clearance is still limited versus a normal vacuum.

Upholstery / Above-Floor Pickup
Product 1: Dyson Ball Animal 3 Extra...
4.6

Above-floor cleaning is repeatedly praised, with turbine and upholstery tools pulling hair from couches, car seats, and pet beds. One review notes suction remains strong even when using attachments.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.2

Upholstery/spot tools get strong feedback for refreshing sofas, chairs, car mats, and pet beds. Some stains may take repeat passes, and one test review rates handheld extraction as average rather than exceptional.

Versatility
Product 1: Dyson Ball Animal 3 Extra...
4.6

Versatility is frequently emphasized: multiple head settings, strong hard-floor and carpet performance, and long-reach above-floor tools support whole-home cleaning. Its limitations show up most on stairs, thin rugs, and edge-front pickup.

Product 2: Bissell ProHeat 2X Revolution Upright...
4.4

Reviewers highlight versatility across wall-to-wall carpet, area rugs, stairs, and upholstery thanks to multiple modes and tools. It’s repeatedly noted as not intended for hard floors, so it’s best as a dedicated carpet/upholstery cleaner.

Water tank
Product 1: Dyson Ball Animal 3 Extra...
No score yet
Product 2: Bissell ProHeat 2X Revolution Upright...
3.7

Tanks are easy to remove and refill/empty, and capacity is often seen as decent, but several reviews mention frequent dump/refill cycles on big cleanups. Design quirks show up: tall fill shape, small openings that are hard to scrub, and some models’ dirty-tank ‘full’ line limiting usable capacity.

Weight
Product 1: Dyson Ball Animal 3 Extra...
2.4

Weight is consistently flagged as a drawback at roughly 17 pounds, affecting carrying and stair use. The heft is often framed as the tradeoff for strong power and a dense build.

Product 2: Bissell ProHeat 2X Revolution Upright...
3.5

Weight is commonly described as manageable while pushing but noticeable when carrying—especially once tanks are full. Several reviewers call it heavy/bulky for stairs, even if it maneuvers well on the floor.