Our new bathroom should do without holes. I've heard a lot of "no drilling" and went in search. Despite the many not very positive reviews on this product, I still chose it because we wanted to have it all square and the wonderfully pure fit its shape. Now it depends quite a while, is in operation, looks great and still keeps on the wall. We have previously cleaned the tiles, glued the holder and allow to dry overnight. The results speak for themselves and I can not understand the criticism.