I have ordered two sets in the past and was very happy. I ordered a third set and the quality was not as great as the two other sets. Two of the shelves (for the two tiered unit) were missing. Also the longer shelf might have had an issue with the hole where one of the screws goes in, as it would not tighten and therefore was not as stable. Maybe I got a bad set. I had already assembled the other shelves and was not worth the hassle of taking everything apart and returning to exchange but did report to customer service. Hope it was just a one off!