This mat was to replace an old one we had at work behind the counter in a retail store which was over thin carpet, but on a concrete floor. This mat is much softer than our old one and a lot more cushiony. I hope it holds up as well as the old one did.
Though we could have just been unlucky and gotten one that happened to get through inspection with flaws in its finish, we were also unable to assemble it because once the metal "peg/screws" were in place the other end of them would not fit into the holes in the shelf below it. It was very disappointing so we are returning it and will continue to look for another option for desk top storage.