Even though its noise level, mapping, and cleaning speed were strong. Coming from a j7 that rarely needed no-go zones, they feel this model requires too much micromanagement. They’re now researching robot vacuums with smarter, more trustworthy obstacle detection. https://www.reddit.com/r/RobotVacuums/comments/1omwz0o/dreame_fell_down_the_stairs_again/