The quality is excellent - but the glass on this size shelving is exceptionally heavy, and the mounting screws are poor at best. Even with molly bolts the shelving ripped out of the wall. I had a heck of a time trying to lift the glass and get it installed, just to have it come out of the wall. I did manage to get one of them up - but I am afraid to put anything on it due to the weight. So I will be removing the one shelf that did stay up because I do not trust it to actually stay in the wall. The bad thing is that I bought two packages of these, so I have another set of 4 unopened to find a new home for. Very wasteful.