I like this office chair very much. I bought it for my son. I bought a seat before, but the back support was not good. When he often pressed it back, the left side was broken. The design of this chair is very good, the back has a special support, the child will consciously stand up the back when playing on the computer, rather than in a semi-lying state. This chair is easy to assemble and has a complete set of accessories. The breathability of the chair is also very good. The armrests can be adjusted, either flat or upright. For my family, the design of the back is perfect. I like this very much.