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.
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.
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. )
It took only 5 days for the Staples to pull out of the seat. I'm well under the max weight limit. I was very surprised when it happened while I was sitting at my computer. Also the seat is kinda narrow and odd to sit on only mesh with out a cushion. Lastly there is rubber through out the mesh which grabs clothes skin and hair.