Easy assembly, and I honestly can't believe how cheap this bed was for how great it looks and how good the quality is!  The instructions were super easy to follow, and everything was well labelled.
Side note: (not related to the bed) All Modern sent me two of the same box, and had to have the headboard sent out again which was super annoying, but unrelated to this actual bed. They were apologetic and got the replacement out super quickly.