In my opinion this chair is very comfortable and good quality materials. The assembly was very easy following the instructions and using the tools that came included. I am very pleased and thankfully for the good quality. It was a little bit expensive but I think it will be worth the investment. Now my back and specially my head has a really confy support with the materials. This material is important to ventilate and avoid sweating. I really liked the armrests that can be positioned in 3 levels: low, medium and high. The other thing I liked is that the backrest can be adjusted to a semi Fowler position. The product came 1 day earlier which was awesome. Thank you.