This is a really comfortable and high quality chair! It is really heavy, so be prepared to use two people to get it all together, even though the installation is pretty simple (just connecting the base to the seat). Tons of options to adjust and very comfortable. Adjustable arms move up and down and out from the base as well. More comfortable than the $800 chairs in my office! I use this in a room with fairly high pile carpet and it rolls with no issues. Back is mesh so stays cool.