I bought 6 total of these chairs, and all but one are going pretty strong. One of them, the screws in the leg supports never did catch and grab the wood, thus its always lose. I tried glueing it with wood glue, tried putting wood in the holes to give extra stuff to catch onto, but just didn't work. 

I've also had to retighten a lot of the seat connections multiple times on multiple chairs. Thats kind of annoying.