Affordable and nice looking. Easy to set up. Less than 15 minutes. I don’t like those little Allen wrenches but I’ve mastered their use. I use a vice grip on the Allen wrench and then just spin that so I don’t have to keep turning the little Allen wrench.
Did have some back pain after 8 hours of sitting - probably from sitting for too long anyway. This chair is much better than the last chair I had. Definitely worth the price paid.