I'm 6 feet tall. When I sit straight he head / neck support protrudes into the back of my upper back and shoulders and isn't adjustable. The chair otherwise seems OK. If you're 5 foot 7 this may work well for you.
I first purchased this chair several years ago for the workplace and liked it so much that I bought one for home. I recently changed departments and just got another one. It's comfortable for someone who is barely 5'2". I don't use the detachable headrest but I imagine taller people would appreciate that feature.
The Chair was easy to assemble with the directions and tools provided. Two items to be aware of.. 1. This chair is best suited for those under 6'0" probably only 5'10". I'm 6'1" and when assembled the headrest was hitting my shoulder blades even at its highest setting I removed it altogether. 2. It is indicated in the specifications by its absence. Be aware that the seat does not slide forward to support your legs/thighs. Other than that it does seem well built and does have good lumbar support.