Nothing wrong with the quality - these are just a pain to hang. I suppose if you have hung floating shelves before, you know what to expect, but getting these level and locked into place took quite some time, and if you get it wrong, that's a large hole in your wall, as you have to use anchors and screws for these. Also, the instructions don't specify what size drill bit you need which I thought was odd. You will need 2 people and at least an hour for these.