I love this chair. It is attractive (not massive like the upholstered ones) easy to move around and extremely comfortable. It is also easy to adjust. I started looking for a new chair when I realized the old one was probably the cause of lower back pain. With this chair I do not have any. Incidentally I purchased it at Staples locally rather than on an internet site and again could not have been happier with their sales person service and helpfulness. Forgot to mention - the price is extremely reasonable too.
Overall is great product except the head rest. I am 6’4” tall and head rest is pretty much at fixed height in other words you can not adjust the height. I used the chair without the head rest.
Very helpful in keeping back straight. Comfortable and appears to be durable. Simple assembly instructions could be a bit more clear at a couple points.
Very happy with my chair. It provides GREAT back support and is cool and comfortable for long periods of working at my workstation. All the adjustments made it easy to set up for maximum comfort. ( My only comment would be that you may want a floor mat for wood floors. The wheels are thin and might mark up your hardwood floors. )
I originally bought one for my gf but liked it so much a few months later I wanted one too. The mesh keeps me cooler and the ergonomics helps support my lower back when I have to sit for long durations.