It is not a five hundred dollar task chair so don't expect the level of comfort and various adjustments with this chair. It had the basic with the height adjustment and the back tilt angle. No adjustments for forward tilt nor the back support. The head rest just moves in certain angle but no actual adjustment. Overall it is comfortable. It took me about 40 minutes to assemble the chair.
Great back support easy to put together. I'm on the "heavy side" (260+) and the seat accommodates my weight solidly and comfortably with room to spare. I will probably by one more.