Overall, great technology. There is less dust and wool in the apartment. There were no difficulties with the application and maintenance of the robot. The wires are determined unsatisfactorily, they can wind up. I have not met with cat poop, but I think that most likely they will have to be wiped off the floor and the body of the vacuum cleaner. But it perfectly recognizes all sorts of rags, socks and shoes. It does not hit the walls, it passes tightly without touching. For a month of use, it has never messed up and has not stuck anywhere.