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.
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.