Do you have a big bottom If so, this chair is not for you. I, with a big bottom, find this chair to be physically painful. The bump out towards the seat of the chair, which I believe is supposed to be lumbar support, is too low. For me it hits where my bottom does rather than my back causing me to have to sit with an arched back. My husband however loves it. He also doesnt have a bottom. So it works for him perfectly.