According to the instructions, this should take you 5 minutes to complete.  However, when I tried to line up the top, it wouldn't slide in.  So I had to take it apart, put the on, and then rebuild it.  Also, if you don't put the base of each drawer in the correct direction, the back of the drawers do not line up.  There's no screws or nails to this entire assembly.  Hopefully it will last, but if I had to rebuild it again, I would use wood glue as extra reinforcement.