Chair is perfect for me. I'm 5'9 170 lbs 62 years old. Mesh seat and back are very comfortable and cool which is especially important to me living in hot dry desert climate. Arm supports are adjustable to my satisfaction and fixed lower back support fits me well. Chair looks light but is as heavy as a leather chair of similar size. A more adjustable chair with better ergonomics would cost MUCH more. This one suits my size and budget fine.
I was a little wary about a full mesh chair because I am used to ones with cushions but so far it is great. You dont have the same pressure pushing against your joints and it feels fantastic and neck support is just right.