Other than the stand, the entire tree is one piece.  It doesn't get much easier than that.  We set it up to see if everything worked, and it did.  The included directions were for a different tree, but we didn't need directions anyway.  It is not very wide, which works for us.  It is not super full, as each branch is just a single tipped branch.  Most fiber optic trees seem to be that way.  We thought the tree was worth the price we paid.