I sit in this chair for about nine hours per day. I find it to be comfortable and the mesh keeps me cool. I like that the headrest is adjustable and can be moved up and down for comfort.
I am a bigger and taller guy and my biggest issue with a lot of chairs is that the armrests highest placement is still several inches too low. This chair at its highest sits right at the perfect height for me. The chair was super easy to build and when this chair eventually wears out I will be getting a same brand chair once again.