○ Overall cleaning effectiveness on various hard floor types, including sticky messes and dried stains.

Limited evidence · What we still need: Seek independent reviews or hands-on demonstrations.

○ Battery life during continuous use and recharge time.

Limited evidence · What we still need: Review manufacturer specifications and look for user feedback on real-world battery performance.

○ Maneuverability, weight, and ease of use in different household settings, including edges and under furniture.

Limited evidence · What we still need: Find visual demonstrations or try the product in-store if possible.

○ Durability and long-term reliability of components, including the steam function.

Limited evidence · What we still need: Search for long-term owner reviews or warranty information.

○ Effectiveness of the steam cleaning function in sanitizing and removing tough, set-in stains.

Limited evidence · What we still need: Look for specific tests comparing its steam function against other cleaners.