This is my fourth chair in two years, since I started working 60 hrs a week from home. This is the best by far. Great lumbar support. Very comfortable cushion seat. It’s the first chair that doesn’t restrict the blood flow in my legs. It was very easy to assemble in less than 15 minutes. It is also roomy to sit in but not too big to overwhelm the spaces It does have a hard time rolling on my regular plush carpet. And the middle of the seat is pushing slightly on my tailbone but I’m confident that will subside as I break in the chair. Well worth the price.