We ordered 5 of these for our bar.  I had an issue with one of them, but Wayfair was quick to send me replace parts (e.g. I didn't have to ship the whole thing back).  We've been using them for several weeks and they hold up well and feel solid, even with 300-400Lb people sitting in them.  Also, I'd recommend to use a drill for the last 4 screws when attaching the base to the chair seat/back.  On the first one I assembled, used the little tool it comes with and after sitting in it, it popped like I broke something, but double checked and every thing looked ok (I'm ~190).  Tightened the rest with the drill and no issues.