I bought this chair for office/desk setup. It is comfortable and height adjustable. The back is fixed and is attached to the arms not the seat. This means that you cannot remove the arms and the back angle is fixed. (removing the arms could be desirable for wider people narrow desk opening or musicians that need instrument clearance like guitar or banjo.) I took off one star due to the arm design. Assembly was easy hardware was well organized just be careful to select the correct arm for each side and to orient it properly or you will have to rework. The last two screws that are used to support the back are not shown in the assembly instructions but they go in the upper rear holes in the arms and are provided in the hardware pack so rather obvious.
I sit in this chair about 6 hours every day. It is pretty comfortable and an excellent value. The seat base slants forward just a bit tto much for me. I put a spacer under the front two fasteners and it is now great. I was originally looking for an armless chair so it would slide under my desk. Turns out that the arms are not in harms way - working out very well.