First off; bought this on Black Friday so the price was right. That said it was for my mother with Rheumatoid Arthritis. The hour rating works for her. This is NOT (IMHO) an all day chair... My other all mesh all day rated chair is much more comfortable... Keep in mind that chair is a Herman Miller and was about 10-12x the cost of this one. For the price you can't go wrong for a 4-6hr chair!
The chair has good back support and is very comfortable. Staples staff was very helpful as I needed to find the color I wanted and needed to get it to my car. I would recommend this chair.