After sitting on a hard kitchen chair for 15 months of the pandemic this chair is a dream! It's got great back support and I can keep or remove the head rest. I'm only 5'3" but can say the adjustable nature of this chair works well for someone my height.
My son and I both got this chair over a year ago. He is 5'11" and I am 5'6". Neither one of us is heavy. Chair seemed OK at first but when used for long stretches of time the edge of the seat presses into the calf of the leg. That can be quite sore. If you expect to spend long periods of time in the chair consider a different choice..