I bought this chair after reading multiple reviews online of office chairs meant for comfort during 8+ hour long work days. Unfortunately the width of the seat is such that the plastic was digging into my hips and was incredibly uncomfortable. I will be returning the chair and buying another more expensive chair instead that offers different sizes to accommodate all body sizes.
Lumbar support is good. Arm rest adjustment is very good. Tilt control is average. Lift cylinder average. Chair is about 2 inches too low for my taste. I have ordered a taller after market cylinder to attempt to adjust. pending receipt.
I am a data scientist working from home. I needed a good chair that I am comfortable sitting on for long hours but I also did not want to spend $2000 for a chair. I bought this chair after watching a YouTube video that recommended it. I tested it at Staples but they didn't have any in stock so I ordered online. The chair is great and ergonomic. I like the head rest and the ability to lock it at an angle so that when I think about a problem I can relax my body. But I wish it was a bit larger. I am 5' 11" and 163 lbs for your reference. I think if you are taller than 5' 11" then the head rest may touch your shoulders. I have set the head rest to its highest position and it is fine for me. It seems to be durable but I have owned it for just a couple of weeks so I'm not sure about that.