Nice chair rather easy to put together. I have only had it a week or so. Thus still trying to get used to the mesh 'seat' part. The back and headrest feels fine. But the seat part to me takes a bit getting used to. Sometimes I feel as if I am 'falling' off the seat. Other times as if my buttocks is not on the seat properly. Again I feel I just need to get used to the mesh since it moves to fit your body versus a solid piece of foam etcetera.
Chair is comfortable but I am a big and tall guy. The headrest is stationary and not adjustable. Have not been able to get the chair to feel firm. It always goes to the back posiiton.