I had it for a week and it's been an upgrade from my old chair and is comfortable. I would give an A- for the setup instructions. The only thing that went wrong is when I got the box it was missing almost all of the key parts outside of the actual set back and arms. Went back to the store and they provided the missing items so that cost me a day.
Purchased this for use at my computer and am well satisfied with its comfort and function. However noticed that the price is now double for what I got it for on sale.