Installed these in my sons room.  Putting together was very simple, getting the placement of the wall is another story. They had sticky foam pieces that once you have placement you press agains the wall to guide where it goes on the wall.  You need two or even three people for this.  Make sure you hold each shelf level before going near the wall or the foam key holes will stick in the wrong place.  We had one level shelf and the other two were off so be precise and have a level ready.  I love the look I just wish we got them level the first time.  I gave it a 4 and not a 5 because the directions are only pictures.  No explanation of anything. Other then that they look great and are definitely unique.