This is just a run of the mill chair nothing special. The only adjustments are the arm rest height and the seat height. Over all fairly comfortable but if you are going to planted in it for most of your day I would recommend something at little nicer.
This chair is nearly perfect and I would only suggest minor changes such as the headrest being able to raise/lower instead of being stationary at one height and being able to bring the arm rests in tighter to the chair (width of the arm rests) and being able to lower the lumbar support just a smidge further or even retract it a bit.