I love the chair--very comfy, the right height and with a smaller footprint than my old office chair. My behind feels better in this chair. 
The directions for assembly, however, consist of 4 small drawings--that is it! They combine several steps in each drawing, and you find out the hard way that if you do them in the wrong order you have to  unscrew things and start over. It really takes 2 people, but I managed. However, there is one screw that simply would not line up, so the back of the chair is held together with 2 instead of 3 screws, and I'll just need to be careful to check it now and then.