Average score
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.4
P2
Product 2: BISSELL Big Green Professional Carpet...
4.3
Accessories and Tools
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
3.5
Included tools were useful but mixed: reviewers liked the hose/tool package and storage bag, while one found special attachments did not improve stain cleaning much.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.3
The included hose and tough stain/upholstery tools were usually viewed as useful, though one reviewer strongly disliked the included shampoo bottles.
Adaptive chassis lift
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
4.0
One technician highlighted the spring-loaded/free-floating lower design as a rare design intended to accommodate higher-pile carpet.
Airflow blowback
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.5
One comparison praised the machine's bottom exhaust/blowback as strong enough to aid drying.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetArea Rug Handling
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Area rug and long-pile rug evidence was positive, with reviewers reporting strong results across rugs and carpets.
P2
Product 2: BISSELL Big Green Professional Carpet...
3.5
Area-rug handling was supported only by one 7700 review, which said best results seemed limited to small areas, bare floors, and area rugs.
Assembly and Setup
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Setup was consistently praised as easy, with simple instructions and minimal assembly.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetBuild quality and durability
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
2.5
Build quality drew a concern from one reviewer who questioned long-term durability because of the plastic construction.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.9
Build quality was one of the clearest strengths, with reviewers citing rental-fleet toughness, long-lasting construction, and tank-like durability.
Carpet — High-Pile Pickup
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
High-pile and long-pile carpet handling was strongly praised because the brushes cleaned without jamming or slowing.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetComparative performance
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.3
Comparative results are favorable overall, especially for midrange value, although one multi-machine test ranked it behind some alternatives overall.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Comparative performance was strong, with reviewers saying it beat named rental-style competitors and lower-priced options for key cleaning tasks.
Controls and UI
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
The visible controls and mode selection were described as straightforward by a first-time user.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.3
Controls were viewed as simple and easy to operate, with one review noting the minimal on/off and trigger setup.
Cord length
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.5
Cord length was described positively by two reviewers as plenty long or a good length.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetDried-On Stain Removal
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
3.6
Stain removal is mixed: everyday and pet stains can come out very well, but comparative dried-stain tests rated the PowerScrub around average or worse.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Stain-removal performance was the strongest recurring theme, with reviewers praising dried-on, tough, vomit, tomato sauce, and other stain results.
Ease of use
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.7
Ease of use was one of the most consistent positives, with reviewers describing operation, handling, and basic setup as simple.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Ease of use was strong where reviewers discussed push/pull cleaning, maneuverability, tank installation, and large-area coverage before refill stops.
Emptying and Mess Control
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
One reviewer found dirty-water dumping convenient and easy.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
The dirty-water tank earned strong marks in one test because it was easy to empty and clean through the large opening.
Filtration / Dust Containment
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
One review of the Big Green 7700 praised its filtration approach for containing dust and helping clean the air while cleaning floors.
Floor Drying Time
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.3
Drying feedback is mostly positive thanks to suction and heated airflow, but one comparison test found weaker drying results for this model.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.8
Drying performance was repeatedly praised, with reviewers saying it left carpets drier than competitors or helped carpets dry faster.
Floorhead design
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
3.9
The SpinScrub floorhead design is a tradeoff: it limits stain spreading, but one test criticized the brush speed/efficiency.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.3
Floorhead feedback was mostly positive thanks to the large/aggressive brush and spring-loaded nozzle, but the 9-inch path was narrower than some competitors.
Fresh Liquid Pickup Speed
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Wet-stain pickup is a clear strength, with reviewers saying it removed wet stains quickly and effectively.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Fresh or wet stain pickup was praised in several tests, including fast grape-juice cleanup and strong wet-stain results.
Hair-removal channel issues
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Hair cleanup around the brush/channel was praised as very easy with the included cleaning tool.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetHair Pickup — Carpets
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
4.5
One owner observed carpet pet-hair pickup during deep cleaning, tying hair removal to the brushroll and extraction performance.
Hair‑Wrap / Tangle Resistance
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Tangle resistance was praised in high-pile/long-pile use, where the cleaner avoided jams and tangles.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetHeating element
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.3
Heated airflow was viewed positively as a drying aid, though one reviewer only observed the heat before full cleaning tests.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.5
The 7700 review described the heating element as useful for improving cleaning by raising hot tap-water temperature.
Hose length
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Hose length was praised by Vacuum Wars as Bissell’s longest hose, increasing reach for stairs, upholstery, and other above-floor tasks.
Innovation compared to competitors
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
The horizontal SpinScrub approach stood out versus traditional brushroll competitors, especially for stain spread and long-pile handling.
P2
Product 2: BISSELL Big Green Professional Carpet...
2.0
Innovation was a weak spot in one review, which said the machine’s only unusual trait was being larger and heavier than most competitors.
Maintenance requirements
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
3.8
Maintenance is mixed: brush/nozzle access can be easy, but dirty-tank cleanup and roller access drew complaints in some tests.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.0
Maintenance was generally manageable, with easy tank and underbody cleanup, but brushroll removal requiring a screwdriver and interior wiping were drawbacks.
Maneuverability and Handling
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.9
Handling is a major strength, with multiple reviewers saying it feels light, smooth, or vacuum-like to move.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.3
Handling feedback was mixed: one review called it easy to maneuver, while another said its heavy body was still felt during use.
Mopping performance
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
4.0
Mopping or hard-floor washing support came from one 7700 review, which said the hard-floor tool did a good job on sealed surfaces.
Noise level
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
3.0
Noise feedback was mixed: one technician found it very loud and advised earplugs for heavy use, while another owner considered it relatively quiet for its size.
Odor control
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.5
One household reviewer connected shampooing and deodorizing with a noticeable improvement in room feel.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetOngoing ownership costs (bags, filters, batteries)
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.0
One reviewer found the included sample solution enough for a room, but noted whole-home cleaning would require buying more.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetOverall durability/longevity
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
2.5
One reviewer raised a longevity concern because the body felt heavily plastic.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.5
Durability was a major strength in most reviews, especially rental-fleet build and tank-like construction, but one review cited leaking complaints.
Overall opinion
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Overall sentiment is very positive across user and test reviews, with many recommending it or calling it a standout midrange option.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.8
Overall opinion was strongly positive across most reviews, with repeated best-in-class or highly recommended conclusions, plus one mixed consumer-review outlier.
Packaging quality
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
2.5
Packaging drew a negative note because the retail box arrived without an outer shipping box.
P2
Product 2: BISSELL Big Green Professional Carpet...
3.5
Packaging received only light opinionated coverage, with one reviewer describing a colorful retail-style box full of advertising.
Pet-Ready Features
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Pet-oriented reviewers used it repeatedly for pet accidents and messy homes and reported that it handled those situations well.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Pet-related cleanup evidence was strong, with one review highlighting urine-stain cleanup and another noting pickup of pet hair and stains from carpet.
Price and Value
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.9
Value is one of the strongest themes, with reviewers calling it affordable, worth the money, and a better value than pricier alternatives.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.4
Reviewers generally considered it worth the higher price because of performance, durability, and warranty support, while still repeatedly noting it is expensive.
Solution / Liquid system
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.5
The wash/rinse and solution systems were praised for flexibility, automatic dispensing, and generally sensible water/solution use.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.9
The liquid system stood out for efficient water use, removable/refillable tanks, visible solution status, and strong area coverage before refilling.
Stair Cleaning
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.0
Stair cleaning was described as straightforward, though the same review noted the unit had some carrying weight.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
The hose and tough stain tool were repeatedly praised for making stair cleaning more practical.
Steam Cleaning
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
3.5
Steam-cleaning feedback came from the 7700 review and was mixed: results ranged from adequate to very good, but slow operation was a caveat.
Storage footprint and upright-stand stability
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
3.5
Storage is workable for those with space, but one reviewer warned it may be hard to store in smaller homes.
P2
Product 2: BISSELL Big Green Professional Carpet...
3.3
Storage feedback was split: the fold-down handle helped storage, but the machine’s large body made it inconvenient for some users to store or use often.
Streaking / Residue
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.9
Residue and streaking control was strong because reviewers liked the rinse feature and the low stain-spread behavior.
P2Product 2: BISSELL Big Green Professional Carpet...
No score yetSuction and Airflow
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.6
Reviewers generally found upright suction and airflow strong, especially at the nozzle, though hose suction was weaker in lab testing.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.7
Reviewers consistently praised suction at the floor head/nozzle, with repeated test evidence of class-leading extraction; the main caveat was weaker sealed suction at the hose in one test.
Suitability for heavy-duty use
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.5
A large-household reviewer framed it as a valuable tool for regular deep cleaning in a busy home.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Heavy-duty suitability was a standout theme: reviewers repeatedly framed the machine as a workhorse for large areas and deep cleaning.
Suitability for small spaces
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
2.3
Small-space suitability was weak because reviewers emphasized the need for storage space and cautioned against the machine for users who struggle with its size and weight.
Support and Reliability
P1Product 1: Hoover PowerScrub Carpet Cleaner Machine
No score yet
P2
Product 2: BISSELL Big Green Professional Carpet...
4.8
Warranty confidence and widely available parts supported reliability confidence in the reviews that discussed ownership support.
Tool-change simplicity
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
5.0
Brush assemblies, hose hookups, and removable pieces were repeatedly described as easy to remove, clean, or attach.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
The hose/accessory changeover was described as clearly marked and simple, requiring only a quarter-turn connection process.
Upholstery / Above-Floor Pickup
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.3
Above-floor and upholstery results were generally good, including chairs, spot cleaning, and couch/futon use, though not every tool impressed.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.6
Above-floor and upholstery cleaning were considered useful and at least slightly above average, helped by the hose and tough stain/stair tool.
Versatility
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.5
Versatility is above average, especially for spot cleaning and hose-based use beyond standard upright carpet cleaning.
P2
Product 2: BISSELL Big Green Professional Carpet...
4.5
Versatility was praised for hose, attachments, above-floor uses, and multi-surface capability, though spot cleaning was only slightly above average in one test.
Water tank
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.0
Tank feedback is mixed: large capacity and easy dumping are positives, but leakage and dirty-tank cleanup are concerns.
P2
Product 2: BISSELL Big Green Professional Carpet...
5.0
Water-tank performance was repeatedly praised for large capacity, removable/refill-friendly design, and long coverage between refills.
Weight
P1
Product 1: Hoover PowerScrub Carpet Cleaner Machine
4.3
Weight feedback is mixed but mostly positive: several found it light, while one found it somewhat hard to carry on stairs.
P2
Product 2: BISSELL Big Green Professional Carpet...
2.0
Weight was the clearest repeated drawback: reviewers consistently called the machine heavy, large, or difficult for stairs and some users.