I bought this interestingly designed chair to use at my desk not knowing what to expect. I usually alternative between this and my chair with a coccyx pillow to relieve my lower back pain/sciatica that inevitable comes in our sedentary society. The exercise ball on the Symple Stuff is frankly awesome, and great for when you want to bounce up and down and do some exercises in order to get the blood flowing to your extremities after a while of sitting.