Average score
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.2
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.8
Accessories and Tools
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.1
Accessories were useful in some reviews, but the tool package was inconsistent, with complaints about a stubby wand, custom fitting, missing tools, and a disappointing turbo tool.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.2
Attachment coverage was often praised for versatility, though several reviewers found some brushes basic, stiff, or missing.
Aesthetic design and finish
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.0
One reviewer described the Rewind variant as a nice-looking vacuum, giving limited but positive aesthetic evidence.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.3
Design impressions were modest: one review called it fine-looking, while another said color options were not a major draw.
Area Rug Handling
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.4
Area-rug handling was mixed: reviewers saw dirt pickup, but also noted hard pushing and annoying height-setting compromises.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.8
Area-rug evidence was mixed to negative, including too much suction, awkward transitions, and one report of rug damage.
Assembly and Setup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.0
Assembly was a clear pain point in the unboxing review, with the handle and screws described as surprisingly difficult.
P2
Product 2: Shark Rotator Lift-Away Vacuum
5.0
Setup was described as quick and clear, with parts clicking into place and obvious red release buttons.
Bin and Bag
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.9
The bin was praised for capacity/removability in some reviews, but several reviewers disliked accidental release, grimy handling, or awkward reinstallation.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.9
Bin feedback was mixed by variant: some reviewers liked large or easy-empty bins, while others found smaller bins filling quickly.
Build quality and durability
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.3
The newer model's build quality received strong praise for sturdiness, thicker plastic, and feeling less cheap than prior Dirt Devils.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.7
Build quality varied by review and model, ranging from sturdy construction to complaints about newer internal build quality.
Carpet — High-Pile Pickup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
High-pile evidence was limited and only moderately positive, mostly pet-hair pickup rather than broad debris testing.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.0
High-pile performance was a weak spot in the limited evidence, especially cereal pickup.
Carpet — Low-Pile Pickup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.1
Low-pile pickup split by model/review: CNET measured poor sand pickup, while the newer model did excellently on low-pile commercial carpet.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.3
Low-pile and general carpet pickup was usually good to excellent, with one critic sharply disagreeing on carpet cleaning.
Carpet — Medium-Pile Pickup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
Medium-pile performance was context-dependent, ranging from CNET's weak pickup to newer-model reviewers who found carpet contact finicky but workable.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.7
Medium-pile carpet evidence was strong overall, including deep-clean scores near premium models.
Clogging and debris prevention
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
Clogging/debris prevention evidence was split: one review praised multi-cyclonic clog reduction, while CNET found tool clogging and brush-well jams.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.0
Clogging evidence was limited but negative, tied to debris getting stuck around the front roller.
Comparative performance
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
Comparative performance evidence diverged sharply, with CNET's Dash test performing poorly and the detailed reviewer calling the newer model a major Dirt Devil improvement.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.6
Comparative evidence was mixed: the Rotator often won on value but sometimes trailed premium Shark, Dyson, or Electrolux models.
Controls and UI
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.5
Controls were generally simple and accessible, but height adjustment and release mechanisms could be awkward or inconvenient.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.6
Controls were usually praised as intuitive, clearly marked, or conveniently placed.
Convertible handheld design
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.9
Lift-away and handheld convertibility was a major theme, but non-powered Lift-Away limited some variants.
Cord length
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
Cord length evidence was split, with CNET calling 25 feet plenty but the detailed newer-model review calling the cord too short.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.5
Cord length varied by model; 30-foot cords were praised, while 25-foot cords were repeatedly criticized.
Cord management
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.5
Cord management varied by variant: the non-rewind cord fought the reviewer during wrapping, while the Rewind's retracting cord was praised.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.0
Cord-management evidence was limited and negative, focused on the cord getting in the way.
Crevice / Groove Pickup (Hard Floors)
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.1
Crevice and groove pickup ranged from perfect in some DuoClean tests to below average in other Rotator Pet evaluations.
Cyclone performance
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.3
Cyclone performance was improved versus older Dirt Devils in some owner evidence, but the detailed review still called the cyclone ineffective under dust load.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.2
Cyclone/no-loss suction evidence was limited but positive, tied to filters staying cleaner longer.
Debris illumination
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.5
Debris illumination was usually positive where LEDs were discussed as helping visibility.
Ease of use
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.3
Ease of use was generally good once assembled, with simple operation and disassembly, though filter condition affected cleaning performance.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.8
Ease of use was often positive for basic vacuuming and conversion, but one critical review said it needed babysitting.
Edge and Baseboard Cleaning (Hard Floors)
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.2
Only one review supplied opinionated edge-cleaning evidence, and it was positive about reducing dirt hiding near walls and corners.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.8
Edge and baseboard cleaning was consistently praised in the reviews that tested it.
Emptying and Mess Control
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.8
Emptying and mess control were mixed: one-touch/removable bins helped, but accidental bin release, grimy handling, and trash-can positioning were concerns.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.2
Emptying was generally easy, but some reviewers noted smaller bins or frequent emptying.
Filtration / Dust Containment
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.6
Filtration drew praise in roundup-style coverage and from one owner, but the detailed review criticized it as an unsealed budget system with dust getting through.
P2
Product 2: Shark Rotator Lift-Away Vacuum
5.0
Filtration scored strongly because reviewers repeatedly cited sealed HEPA systems and successful fog/smoke containment.
Floorhead design
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.2
The floorhead earned praise for stiff bristles and a felt gasket, but reviewers also criticized carpet-contact issues and the lack of brushroll shutoff.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.0
Floorhead evidence split between strong DuoClean large-debris pickup and criticism of front-roller airflow or agitation.
Floorhead Seal on Hard Floors
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.0
One Rewind review praised the bare-floor seal, saying it helped pick up debris that might normally scatter.
P2
Product 2: Shark Rotator Lift-Away Vacuum
5.0
Hard-floor sealing evidence was limited but very positive for the DuoClean Pro floorhead.
Hair-removal channel issues
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
1.8
Hair-removal channel evidence was negative, with CNET finding hair wrapped around the rollerbrush rather than fully entering the bin.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.3
Hair-channel evidence was limited but negative, with clogs at the dustbin/hose or roller area.
Hair Pickup — Carpets
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.8
Carpet hair pickup was generally favorable in newer reviews, but CNET found the older Dash comparatively weak despite a 92 percent pet-hair result.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.8
Carpet hair pickup was consistently strong across pet and human hair tests.
Hair Pickup — Hard Floors
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
1.2
Hard-floor hair pickup was weak in the CNET test and the detailed review remained cautious about bare-floor use despite some pickup ability.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.4
Hard-floor hair pickup was mixed: some tests were strong, but one CNET test found no pet-hair pickup with the brush off.
Hair‑Wrap / Tangle Resistance
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
1.8
Hair-wrap/tangle resistance was poor in CNET's human-hair test, where hair tangled and wrapped around the rollerbrush.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.7
Hair-wrap resistance was one of the strongest recurring positives, though older Rotator testing showed tangling.
Hard Floor — Fine Dust Pickup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
Hard-floor fine-dust evidence was mixed: CNET found weak fine-particle performance, while first-impression demos saw fine dust pickup on carpet and bare-floor demos looked better.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.4
Fine hard-floor pickup was often strong, especially pollen, sugar, sand/sawdust, and soft-roller dusting; one flour test underperformed.
Hard Floor — Large Debris Intake
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.7
Large-debris hard-floor pickup was mixed, with positive claims about fewer passes but CNET's hard-floor Cheerios result was poor.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.8
Large hard-floor debris results were mixed: DuoClean designs excelled, while older or non-DuoClean tests struggled with cereal, leaves, or extra-large debris.
Headlight and LED lights
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.5
Headlights and LEDs were usually helpful or bright, though one consumer-summary review called them not very bright.
Hose length
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.7
Hose length was decent on newer owner reviews, but CNET considered the Dash hose ungenerous against a named Eureka comparison.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.0
Hose reach ranged from very beneficial and long to too short in some Lift-Away or tool-use scenarios.
Innovation compared to competitors
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.2
Innovation evidence was limited but positive, centered on the detailed review's view that TTI made real improvements over recent Dirt Devils.
P2
Product 2: Shark Rotator Lift-Away Vacuum
5.0
Innovation stood out in anti-tangle roller design, which reviewers framed as ahead of many competitors.
Kid-friendliness
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.0
Kid-friendliness evidence was narrow but positive, tied to larger cereal-type debris cleanup for parents.
Low-profile design
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.0
Low-profile reach was poor because the cyclone assembly prevented getting under low furniture.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.1
Low-profile performance was generally good for under-furniture access, but not universal.
Maintenance requirements
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.1
Maintenance requirements were mixed: filters and savings were manageable, but brush access, filter washing, and jam-clearing could be tedious.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.3
Maintenance evidence was mixed: washable filters and anti-tangle brushes helped, but DuoClean rollers and filters still needed care.
Maneuverability and Handling
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.7
Handling was usually positive on the newer models, but the CNET Dash review found it less maneuverable than comparable vacuums.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.3
Maneuverability was mostly praised for swivel steering, with a few stiffness and handling caveats.
Noise level
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.1
Noise impressions were mixed: one reviewer said the vacuum was not very loud, while another called the turbo brush loud and rattly and the Rewind louder than a cordless unit.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.9
Noise was usually average to slightly loud; a few sources called it fairly quiet, but several measured around 78-80 dB.
Odor control
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.5
Odor control was seen as useful when present, but scent longevity disappointed in one long-term home test.
Onboard tool storage
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.3
Onboard storage was convenient in the roundup, but reviewers criticized an unused post, missing accessory, and tool-storage oddities.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.5
Onboard tool storage was a recurring limitation when attachments outnumbered storage spots.
Ongoing ownership costs (bags, filters, batteries)
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.7
Ownership costs look moderate: some evidence praised fewer filter replacements, but the detailed review still expects washing and periodic filter replacement.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.6
Ownership costs looked favorable where washable filters reduced replacement needs.
Overall durability/longevity
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.5
The detailed reviewer saw better construction and motor feel than older Dirt Devils, but still considered longevity below the equivalent Bissell.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.0
Durability evidence split sharply, from sturdy, built-to-last impressions to one critical warning about longevity.
Overall opinion
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.6
Overall opinion was highly mixed: several reviewers liked the newer models at $100, while CNET strongly rejected the older Dash evidence.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.2
Overall opinion leaned positive for value, suction, and versatility, but not unanimous due to weight, carpet, and reliability concerns.
Packaging quality
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.5
Packaging and out-of-box setup were criticized because filters were not preinstalled and reviewers had to warn buyers to check packaging.
P2Product 2: Shark Rotator Lift-Away Vacuum
No score yetPet-Ready Features
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.0
Pet-oriented tools and hair pickup earned praise in positive reviews, but the included pet/turbo accessories were not consistently strong across all evidence.
P2
Product 2: Shark Rotator Lift-Away Vacuum
5.0
Pet-hair performance was one of the clearest positives, especially on upholstery, carpets, and anti-tangle tests.
Price and Value
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.0
Value depended heavily on price: reviewers liked it around $100, but criticized it at $119-$130 and strongly rejected the older Dash's value.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.3
Value was often a strength, especially versus pricier competitors, though some newer variants were criticized as overpriced.
Scratch resistance
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
1.5
Bare-floor scratch resistance was a serious concern in the detailed review because of the aggressive spinning brush and lack of brushroll shutoff.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.0
Scratch evidence was mixed, with one review warning about brush use on hardwood and another seeing no soft-roller scratching.
Self-propel feature
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.1
The unadvertised self-propel pull was criticized as a strain or aggressive behavior on carpet.
Stair Cleaning
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.0
Stair use was better than expected for the detailed reviewer, although reach limitations meant the top steps could require repositioning.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.5
Stair cleaning benefited from hoses, lift-away pods, and pet tools, though one review found the process awkward.
Storage footprint and upright-stand stability
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.8
The hose clip and parked hose setup were viewed as helpful for keeping the vacuum from tipping during above-floor use.
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.3
Upright stability drew concerns when using tools, with reviewers noting tipping or falling in some above-floor setups.
Suction and Airflow
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.4
Reviewers most often praised suction and airflow, especially on the newer Multi-Surface Total Pet, though that strength did not rescue every hard-floor or tool scenario.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.6
Reviewers generally praised suction and real-world cleaning, with some noting raw airflow was not always best-in-class.
Suitability for heavy-duty use
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
3.3
Heavy-duty suitability was limited: the Rewind was framed for heavier cleaning, but CNET found jam-clearing could create extra work.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.4
Heavy-duty suitability was supported by large-mess handling, strong power, and sturdy or professional build impressions.
Support and Reliability
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.6
Support evidence was mixed to negative: CNET noted a comparable warranty, while the detailed reviewer criticized TTI after-sales and warranty support.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.7
Warranty and support evidence was mixed, with longer warranties praised but one reviewer warning about warranty limitations.
Surface safety with attachments
P1Product 1: Dirt Devil Multi-Surface Upright Vacuum
No score yet
P2
Product 2: Shark Rotator Lift-Away Vacuum
2.3
Surface-safety evidence was mixed, with warnings about scratches from brush use or sharp wand edges.
Tool-change simplicity
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.0
Tool changes and fittings were a recurring weak spot, with reviewers criticizing awkward attachment installation and proprietary/custom hose fittings.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.5
Tool and handle changes were generally described as easy, with clear releases and detachable parts.
Under-Furniture Pickup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.0
Under-furniture cleaning was a weakness because the bulkier cyclone assembly prevented reaching under low furniture.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.1
Under-furniture reach was generally positive thanks to low-profile heads or Lift-Away setups, within depth limits.
Upholstery / Above-Floor Pickup
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
2.9
Upholstery and above-floor pickup were inconsistent: CNET's turbo tool clogged with pet hair, while newer reviews found the turbo tool acceptable or powerful.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.2
Above-floor and upholstery cleaning was a strength with pet tools, though some reviewers found tool use awkward or brushes small.
Versatility
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.0
Versatility was a strength for floor types and above-floor use, but bare-floor safety and custom tools limited the otherwise broad use case.
P2
Product 2: Shark Rotator Lift-Away Vacuum
4.5
Versatility was a central strength thanks to upright, canister/lift-away, tools, and multiple cleaning modes, despite powered-lift-away caveats.
Weight
P1
Product 1: Dirt Devil Multi-Surface Upright Vacuum
4.1
Weight evidence was mostly positive: the vacuum was described as light or easy to carry, though the newer model traded some weight for sturdier build.
P2
Product 2: Shark Rotator Lift-Away Vacuum
3.7
Weight was one of the most context-dependent issues: some found it light for an upright, while others found it heavy.