This rating is based on my experience with the worst assembly instructions I have had the misfortune to deal with. First of all,, there is an error identifying which wood piece is the cabinet top and which is the bottom. The instructions have them backwards. The bigger problems are the general lack of detail relative to how pieces end to be put together, starting with not pointing out that the frame prices need to be assembled with the holes for the keyboard tray on the left. Of far greater impact is the lack of detail regarding how the drawer sliders and the cabinet rails the drawers slide into are aligned. The pictures provide no detail. Just a few added instructions would make the assembly far easier. The desk itself is fine as far as I can tall at this point not having had the opportunity to actually use it.