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The separate detergent reservoir and auto-dosing system are frequently praised, often described as lasting up to about 40 days and allowing solution on or off control. Reviewers also like having...
Pros: Hair‑Wrap / Tangle Resistance, Under-Furniture Pickup
Cons: Headlight &, LED lights
Reviewers like the adjustable water-output options and the ability to use cleaning solution; some highlight electrolyzed-water operation as a differentiator. A common request is easier filling, and there’s no consistent...
Pros: Innovation compared to competitors, Low-profile design
Cons: Airflow blowback, Clogging &
The liquid system is widely praised for feeding fresh water to the roller, offering adjustable hydration, and supporting non-foaming cleaning solution for harder messes.
Pros: Noise level, Weight
Cons: Suction and Airflow, Self-cleaning cycle
The solution system is described as automatic (no trigger), with multiple modes that change how much solution is applied during cleaning.
Pros: Hard Floor — Large Debris Intake, Low-profile design
Cons: Suitability for heavy-duty use, Overall durability/longevity
Liquid handling varies by version: some S7 variants emphasize steam or water-only cleaning, while others support detergent; overall, users like the clean-water-only approach and predictable water control.
Pros: Versatility, Fresh Liquid Pickup Speed
Cons: Bin &, Bag
Solution delivery differs by model: HydroDuo-style trigger control lets users meter moisture, while HydroVac-style automatic dispensing is convenient but less adjustable.
Pros: Weight, Maneuverability &
Cons: Clogging &, debris prevention
The liquid system (clean/dirty separation and spill pickup) is widely praised, including strong suction-only spill pickup. Some coverage of variants adds automatic detergent mixing and more advanced liquid handling features.
Pros: Assembly and Setup, Fresh Liquid Pickup Speed
Cons: Headlight &, LED lights
Most variants automatically dispense water/solution as you clean (no trigger), and some newer versions add a boost mode for extra solution on stains. This is convenient, but it offers less...
Pros: Cordless convenience, Hard Floor — Fine Dust Pickup
Cons: Software-update support / feature longevity, Steam Cleaning
The included detergent and dosing guidance are appreciated, but some reviewers recommend sticking to the brand solution and others note it may be difficult to buy replacements in some regions.
Pros: Automatic standby switch, Floor Drying Time
Cons: Upholstery / Above-Floor Pickup, Area Rug Handling
The liquid system is simple and water-based; some reviews mention you can use a mild detergent, but there is typically only one wet mode and limited control over water flow.
Pros: Debris illumination, Suction &
Cons: Self-cleaning cycle, Dirty water sensor
The spinning mop system is water-focused with adjustable output and typically discourages detergent use; it is best for light, fresh messes rather than deep cleaning.
Pros: Noise level, Aesthetic design &
Cons: Headlight &, LED lights
Most versions use a two-tank clean/dirty setup. Corded units commonly let you dispense solution with a trigger, while some cordless models auto-dose; limited dwell time means stubborn spots may need...
Pros: Assembly and Setup, Steam Cleaning
Cons: Under-Furniture Pickup, Energy efficiency (kWh)
It supports adding cleaning solution to the clean-water tank, but multiple reviewers dislike the lack of automatic detergent injection and note quirks (measuring/pouring) or brand-solution recommendations.
Pros: Edge &, Baseboard Cleaning (Hard Floors)
Cons: AI, Smart &
Detergent/solution handling is a mixed point: multiple reviewers note the lack of detergent injection/auto solution dispensing compared with certain predecessors/competitors, meaning users may need to premix or manage solution manually.
Pros: Aesthetic design &, finish
Cons: Accessories &, Tools