Chairs were solid quality for the price.  Ergonomic design and easy to assemble.  Make sure the bolts align on the longer screws before you tighten the shorter ones.  There are three screw sizes so pay attention so you don't have to go back and redo the process.  After the first chair it takes about 15 minutes per chair to assemble--use an electric drill to make it go faster.  I would definitely buy these chairs again and they were a great value.