Arrived in one piece and went together easily.  I was working with an unusual space and needed to modify a few things.  I did not have a wall to tie the rods into so purchased closet rod hangers and they worked great!  It was also too tall for my space ( which I knew when I purchased it) so we didn't put the very top shelf on.  Purchased some extra L brackets to attach it to the wall and the lower shelf for extra stability since the "top shelf" was omitted.