Love it! I've been using the robot vacuum for almost a month and it works fine. I use it to clean a room on the second floor. At first I was afraid that it would fall down the stairs, but its anti-fall function is very good. I really like the daily scheduled cleaning feature. Every day when I go to work, she washes the floor of the house. When I came back the cleaning was finished. And the power is less than 20%, or after cleaning, it can find its way home to be charged. It is really incredible! I don't have to sweep up animal hair myself. I just want to watch TV after work. Roboman is exactly what I want