I bought this chair on sale and it is a very good chair for the price I paid. The materials are really nice. The adjustments work well. The instructions for assembly were very easy to follow and quick to complete. The lean back is a little bit stiff and might go further back but the chair is comfortable. I haven't sat in the chair for long periods of time yet but I think it will be fine. I did notice the casters did not roll on a carpet I have as well as another chair I was using for my work station. In fact I had to get up and push the chair. If you have a chair mat this would not be a problem. All in all this is an exceptional buy.