Very comfortable; excellent lumbar and head support; height adjustment; arm adjustment; ideal for computer work. I would definitely recommend this chair.
Go with a cheaper chair and one with a cushioned seat. The hard plastic of the edge of seat hurts your thighs and is uncushioned. Bad design. The head rest is also terribly designed. If you are not a petite person you will need to remove it.
I wish I had gotten it sooner. It is so comfortable. All those issues with sitting at a computer for a long period of time have disappeared. I wish my employer would buy them for the office.