The chair feels great on my back. Very comfortable. It is difficult however to get the chair to move into different directions as the castors don't spin well on the base of the chair. Joe Nuccio
Very comfortable for my 5'5" medium build frame. Good back and lumbar support. Adjustable height and arms. My son and husband who are both over 6' and slender to medium frame both thought the lumbar couldn't be adjusted to fit in the right spot and that the headrest was too low. They also felt that the seat part was too close to the back of the chair. So...if you are tall and broad try another product but otherwise this chair is good. The chair wasn't hard to put together. Just need to use a lot of "elbow grease" to tighten the bolts the secure the various parts.