The good part is the chair sits higher than my old one so my feet can sit flat on the floor and my ankles knees and hip don't hurt as much. The down side is I have a wide butt and this is made for a narrow one. The contoured bottom pinches my bottom so I have to use a pad. The only chair pads are too small. I might recommend this for a tall skinny person.
Best chair I've ever owned. It molds onto you like a glove by supporting your entire back especially with the adjustable lumbar support. This chair comes with all the adjustments you'll ever need. I have it set with the back straight up and locked in so that it won't rock back thus forcing me to seat straight and maintain my posture.