This is a good chair with a lot of nice features. I like the range of movement on the seat back and that the arms adjust up/down, front/back as well as rotate in/away from the seat. The lumbar support is more pronounced than I expected and took a little getting used to, but after an initial "break-in" period I find it quite comfortable. 

The instructions weren't the best written/easy to understand. But with that said it was relatively straightforward to assemble and gave me no difficulties. 

For the price, I would like for it to feel a bit more "solid" in the end and for it to have come with higher-quality casters, but overall I'm satisfied with my purchase.