Great product that looks very solid. Easy to program and does its job. Very noisy with the original brush, but I think we can replace it with the Signature Pro that can substantially reduce the decibels, it is the rubber strips that make noise by tapping on hard floors. the sound of the suction is strong but it sucks better than others quieter models. I have not seen any work on the house because I program during the day but the result is more than satisfactory in the evening, and the contents of dust bin proves. The hair does not remain stuck in the brush, or very little and you can remove them easily. Goes under furniture with a height of 12cm, while the robot is 10.2cm, although bypasses the feet of tables and chairs, climbs even on foot lamps if they are not raised too. I tested it by putting pieces of paper in the corners of the house, under the bed, etc. and everything is in the evening dust bin.