I bought this product because they advertised "no taping" and do a room in an hour. Big joke. I spent an hour trying to get a 5 X 5 foot section of wall done. The pad just swivels in the wrong directions and won't even do a simple edge yet alone a corner. Large surfaces are done unevenly. I ended up using my trusty brush and roller. I really hoped that this product would have worked as I wanted to avoid going up on a tall ladder. I have painted many rooms and even the outside of a house, so I am not an amateur at painting. I just totally wasted $20.