The Vortex chair is reasonably priced and of solid quality. The chair has helped ease my back problems and is a pleasure to work in. The only drawback is that it was difficult to assemble.
I am sitting for upto 10 hours a day at a computer and found this chair to be comfortable. The height adjusts the arm retract and it is cushioned enough. I bought one for my son to take to college. It was a good buy