I have tried several different chairs including the Herman Miller Aeron chair and out of them all this is by far the most comfortable one I have used. I have a ruptured disc between L4-L5 and this is the only office chair that I have found so far that allows me to work a full 8 hour day without having back pain. I don’t like to spend this sort of money on a chair but in the end I’m very glad that I did. If you have lower back problems I highly recommend this chair.