OK so this chair was 110 dollars off when I bought it. So that was a huge factor. But just like everyone here that awful headrest is the only bad thing about this chair. I didn't install it. Other than that it's the best chair I've owned hands down. Get it you won't be disappointed.
I decided to buy a mesh chair for increased ventilation and comfort compared to typical padded-type chairs. I've been using it at least 8 hours a day for the last week and find it to be very comfortable. I assembled it myself in about fifteen minutes using the easy-to-follow instructions plus the included hardware and an Allen wrench (the only tool you'll need). All the available adjustments (seat height back tilt and tension armrest height) fit me fine. My only complaint is that the underside of the black seat base had three large white tamper-proof stickers attached. You know the ones that say "Not to be removed under penalty of law except by the consumer". Of course I removed them because they're huge and ugly but it left a sticky mess that took another 15 minutes of hard scrubbing to clean up. Aside from that I'm very happy with the chair and I'm glad to have it.
We purchased two Task Chairs for our home office to replace some older chairs. Each arrived at our home in a box disassembled. It took me about an hour to assemble each chair once I figured out an easier way to assemble each chair. It seemed to take forever to secure each bolt using the Allen wrench provided. So I used a 10 mm socket set which helped to speed up the assembly process. Once assembled and installed in front of our computers the chairs were very comfortable for my wife and I.