Reason for the 4 Stars: It looks great!  Stairs are little-high for our 3 year old, but he can still manage.  Assembly was easy, all pieces present, extra hardware included, wrenches, and instructions.  

Lost 1 star: The stain improperly applied on one piece, but WayFair did an excellent job to make it right.  I have serious concerns about the "400 pound maximum for the top bunk".  Its fairly standard slats across, but the cross beam doesn't go all the way (?!), and there is a noticeable dip when when someones up there.  I'm tempted to get a $10 Ikea crossbar for added support.