I have Sciatica pain which runs from my back to my thighs. I tried all different office chairs but everything hurt me. When I look for soft cushions the arms of the chairs are not adjustable or soft. This chair has both but I am not sure about the quality of the material and the stitching. So I purchased a 3 yr warranty which was $15 from Staples. You cannot beat the combination the price and the warranty.
I feel the quality and stability of the chair is very good but the model in the store was more comfortable maybe because it has been used more and mine is new and needs to be broken in more. Over all I like the chair very much