I think these are decent quality. Easy to put together. The negative thing is that they are very difficult to put up on the wall. I wasnt convinced by the fixings they provided and ended up using my own L brackets. This is what I would recommend you do too. Easier to put up with L brackets, one shelf at a time ensuring each one is perfectly straight. Holding the entire heavy structure on the wall trying to mark the points where to drill was too difficult with the provided sticky marker thingies (useless) and i was scared we might snap they bottom shelf as all the weight was on it.