This chair is so comfortable and breathable; my main complaints about sitting for long periods! The headrest doesn’t adjust so if you’re tall it hits at your neck which isn’t the greatest but I can’t bring myself to complain about that when the rest of the chair feels and looks so good.
The adjustments move the chair items about 1/2 inch which is next to nothing. Lumbar support is locked in a low adjustment with only the 1/2 inch adjustment. Height adjustment is the only redeeming grace.
The Hyken Mesh Chair is an excellent chair. the mesh makes it easy to clean. It can lean pretty far back depending on your adjustments also very comfortable. I've bought 3 of these chairs each for a member of my family they absolutely enjoy this chair. Highly Recommended.