The one stairs-focused review was positive, saying the AC1 was light enough to use on stairs and landings.
Pros: Overall opinion, Mopping performance
Cons: Area Rug Handling, Noise level
The one stairs-focused review was positive, saying the AC1 was light enough to use on stairs and landings.
Pros: Overall opinion, Mopping performance
Cons: Area Rug Handling, Noise level
Stair cleaning was praised by reviewers who valued the lightweight body and ability to use the main head or handheld format on stairs.
Pros: Overall opinion, Suction and Airflow
Cons: Emptying and Mess Control, Hard Floor — Large Debris Intake
Stair cleaning was positive when using handheld tools or the Hair Screw tool, but weight can make extended above-floor work tiring.
Pros: Suction and Airflow, Debris illumination
Cons: Price and Value, Weight
Stair cleaning is a strength thanks to the lift-off pod and pet tools, although hose length can limit comfort.
Pros: Overall opinion, Suction and Airflow
Cons: Hair Pickup — Hard Floors, Airflow blowback
One reviewer carried the unit down carpeted stairs after use and reported no water leakage, supporting limited stair-adjacent handling.
Pros: Overall opinion, Edge and Baseboard Cleaning (Hard Floors)
Cons: Price and Value, Area Rug Handling
Stair suitability was supported by the vacuum's lower weight and ease of carrying upstairs.
Pros: Runtime, Suction and Airflow
Cons: Emptying and Mess Control, Suitability for heavy-duty use
Stair cleaning was supported by the motorized pet/powered stair tool, which the reviewer specifically praised.
Pros: Overall opinion, Accessories and Tools
Cons: Weight, Bin and Bag
Stair use was praised because the vacuum is light, cordless, and easier than hauling a larger vacuum.
Pros: Runtime, Price and Value
Cons: Controls and UI, Convertible handheld design
Stair use was supported by lightweight handling and handheld-style cleaning, especially with smaller attachments.
Pros: Emptying and Mess Control, Suction and Airflow
Cons: Hard Floor — Large Debris Intake, Comparative performance
Stair-cleaning feedback was favorable where the hair screw and smaller tools were used for stairs, furniture, and pet-related jobs.
Pros: Overall opinion, Mopping performance
Cons: Price and Value, Controls and UI
Stair use was better than expected for the detailed reviewer, although reach limitations meant the top steps could require repositioning.
Pros: Suction and Airflow, Overall opinion
Cons: Accessories and Tools, Emptying and Mess Control
Stair cleaning was mixed: one reviewer found it easy on stairs, while another found stair maneuverability tougher.
Pros: Suction and Airflow, Controls and UI
Stair cleaning was only moderately supported: the wand and light body made it possible, but not positioned as especially convenient.
Pros: Weight, Carpet — Low-Pile Pickup
Cons: Carpet — Medium-Pile Pickup, Overall opinion
Stair use is limited by weight; reviewers liked tools, but carrying the machine up and down stairs was considered cumbersome.
Pros: Dried-On Stain Removal, Price and Value
Cons: Floor Drying Time, Weight
Stair cleaning was a weakness because one reviewer warned robot vacuums cannot handle homes with multiple floors without manual moves.
Pros: AI, Smart, App and Automation, Overall opinion
Cons: Mopping performance, Maintenance requirements
Stair usability was poor because reviewers noted the robot cannot climb stairs and must be carried.
Pros: Obstacle Avoidance (Robot), Overall opinion
Cons: Maintenance requirements, Self-cleaning cycle
The S8+ cannot clean stairs and must be carried between levels, so multi-story homes still need manual vacuuming and relocation.
Pros: Overall opinion, Map and Path Efficiency (Robot Vacuums)
Cons: Dock noise, Price and Value