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 like the feel feel of the chair when I sit down however after sitting in it all day I find my back hurts. I do not think the seat is not firm enough. I'm giving it another week just to be sure it is the chair and not lifestyle but if I'm still in pain I'll be returning it.
I am 5'3" and have trouble finding a chair that allows me to adjust to height neck and back support specs. This chair is perfect. Fully adjustable. Comfortable. Great for those with coccix tenderness neck or low back pain. Also is really nice looking and not too bulky for a home office.
the head rest was initially assembled in a way that pushed into your neck. A small (somewhat difficult) reassembly is necessary to make the headrest actually meet your head.