I tried a similar chair to this, the Twin Version, about a year ago when I was looking for an ergonomic stool to help with a lumbar thing. It made my back feel pretty good but my legs not so much. I'm glad I didn't settle on it, because the Swing Version made a huge difference for me. Having a lot more give from side to side made it easier to stay comfortable for a few hours at a time or more. It's definitely not cheap but at least for me, I was already prepared to spend almost this much for the Twin, so getting something that fit perfectly was worth it.