The first unit we received had several manufacturing defects and didn't fit together correctly.  One of the captive nuts also broke free while I was trying to put the table together (I was using my drill with the torque setting to almost its lowest level, so I don't believe this was user error).

Wayfair Customer support was awesome.  I called them up fairly upset but they were very helpful.  After confirming that they had not been receiving a lot of complaints about this item, I decided to go ahead and try again so they are sending out another one free of charge.

I'll update my review when the next one shows up.  Hopefully, I can add a few more stars.