Construction is reasonably easy all parts are marked and the hardware is specially packaged. The quality is... worth what you pay since this is a low-end price for a specialty desk chair. The adjustments are stiff and cheap and have only one or two spots not infinitely adjustable. THE HEADREST: just don't bother putting it on. It thrusts way too far forward and is not adjustable front-to-back you won't be able to sit up straight with your back against the chair back.
I'm 5 10" and the headrest sits a little too low down in my opinion and it pushes your neck forward a but. it also does not sit evenly so one side sticks out more that the other. Also you can't adjust how far out the arm rests go. In my opinion they sit a little too close to your body
If you don't want to keep a bath towel on your office chair after sweating from the polyurethane variety chairs this chair will fill the bill. Very supportive too.
The chair worked out good. There was one chair I liked more (that cost more) that I didn't get because it didn't have the head reast like this one...It has helped my back though already!