Bought this for myself. Unfortunately I'm 6' 2" and the headrest is pressing on my shoulders. The area that I seat on was a bit narrow for me. My wife who is 5' 3" loves it.
I have been stalking this chair waiting for a deal due to the great reviews. After many months I finally found a deal in the <$150 price I was looking for. Step up was relatively easy due to great pictures. The various screws are in well labeled packaging. The headrest is OK for me. If you need it taller there are instructions on the web for some modifications. I used to sit on a cushion. I have not used a cushion yet as this is more comfortable than I expected. Overall a great adjustable chair!