I bought this chair used for working because I have been working at home most time since COVID -19. Very easy to assemble and clear instructions. I am able to assemble it alone and only took about 20 mins. Every part was not too heavy to lift. The seat is very comfortable. The arms can be up and down, that is very helpful for me. Height adjustment is easy. The wheels roll smoothly on my wood floors. Would recommend if you are looking for an office chair that is affordable and comfortable! It was my first time to use WayFair website for shopping.  Nice experience. Very friendly webpage design and quick delivery!