Nice robot. Bought by husband. When there is a small child, the thing is indispensable. Inexpensive but cleans well. Without the bells and whistles, of course, the vacuum cleaner came up for a small two-room apartment. A big plus is that it works quietly, almost without noise. Managed from a smartphone, the application is understandable. Only now it happens that some corner in the room can skip and not pass, or drive a couple of times, and go around the other corner up and down.