Great chair! Very comfortable and supportive and at an excellent price! I work in this chair anywhere between 4-10 hours a day and have yet to be uncomfortable in it.
Seemed a lot comfier at the store but once it was all set up I had to return it. The headrest is too low for me it would always be at my shoulders (I'm 6') my back would start hurting after a few hours sitting on it and once you unlock the back tilt there was not enough resistance to make it a comfortable recline.