Very reasonably priced adjustable and ultimately very comfortable. I especially appreciate that this chair puts my body in the correct position for my back. In my case I want my knees to be slightly lower than my seat.
I bought this from staples was delivered on time as shown at checkout. Assembly of chair was also fairly quick hardly 15-20 minutes to set it up. Initially it felt like a comfortable chair and I was happy that I got a good chair at reasonable price. But after a few days I found that I have a small rash on my butt. It took a couple of days more to realize that the rash has appeared and persisted since I have started using this chair. The seat is not very thick and the material is not made of normal chair or sofa seat fabric but it is nylon (or something synthetic which is similar to that). It not human skin friendly. For people who need it to use for long hours I will not recommended at all. Now I am using a soft and thin cushion on the seat. I have assembled and have been using it for good 3 weeks now so can not return. Else would have definitely returned if it was a product without assembly.