Chair feels so good when you first sit in it. But after 3 hours the back of the chair in the lumbar area really feels like it is cutting into my back. I have to use this chair for 9 hours a day forgot to check into its rating. Still a comfortable chair but only for so long.
Overall good quality chair with many possible adjustments. Comfortable but if you are larger than average you may find the seat uncomfortable for long periods of sitting.
So far I think this is a pretty nice chair. It is quite comfortable and I love the mesh for keeping cool. I really don't have a feel for how long this mesh will hold up - it doesn't appear to be that durable but at the price paid for the chair I am willing to find out.