Great chair! I am a photographer so I can spend a lot of time at my computer editing photos for easily 4-6 hour stretches. Before getting this chair I was experiencing a lot of back pain. The adjustable lumbar support doesn't have a very wide range but it's enough to help. It was easy to put together and the mesh is nice and cool for the Arizona weather. The only small complaint I would have is that after a lot of time sitting in it with shorts the mesh starts to push into your legs and makes that webbing pattern. I don't mind the pattern look of the pattern (since I'm at home) but it IS the tiniest bit irritating on the skin. If I had known this I MIGHT have considered getting one of the other chairs that has a mesh back to keep cool but a fabric/padded seat. I have a feeling I will appreciate the mesh once our summer hits and it gets 110-120 degrees here in Yuma - so perhaps not. Otherwise still very much a 5 star worthy chair.
I use this chair while sewing and like the way I can sit up straight and support my back. I did take off the headrest because it was not at the proper angle for me. The chair is very adjustable and comfortable. I would highly recommend it!
Pretty easy to put together. Always glad when ALL the pieces are in the Box and my Hyken purchase had all the needed parts. Provided tool was a bit on the cheap side but this happens with other stuff as well. I am enjoying the chair and it seems to be a very good purchase. I hope it lasts many years. If you need an office chair this could be a very good choice for you.