What a difference my new chair has made! The lumbar supports makes a huge difference and the mesh seat is so much cooler than my prior cushioned chair.
The back is too high (I'm 5' 5") and there is no way to adjust so the headrest just pushes the top of my head forward. Some of the pre-drilled screw holes did not align and had to be "shaved" with a drill bit to put it together. Otherwise it's fine.
Discovered this chair at work and decided to purchase one for home. Very comfortable sturdy and has a nice design. Would definitely purchase another one.