If you've been used to sitting in a really badly supported office chair for a while it may take you a bit to get used to this chair. My back had to get used to sitting in it with some lower back support but after a few days any small lower back aches went away. I really love the adjustable arms and the adjustable reclining tension. It allows me to go from "WORK MODE" to "r e l a x m o d e" just by pulling the lever out. Materials seem sturdy. Armrests are comfortable but not cushy. The mesh seat and back are springy and supportive. Hoping that it doesn't get too loose with time but the chair has a 7 year warranty so im not too worried. It rolls very quietly compared to my old chair. Box came dented and ripped up but the chair parts didnt seem to have any wear. Instructions for assembly are pretty straight forward. It's a little cumbersome to do by yourself but not impossible. It probably took me about 25 minutes. Overall pretty satisfied.