I really liked this for my office guest bedroom.  The boxes that arrived were in a terrible state and the velvet was exposed in multiple locations, but luckily there was no damage from the rain that day.  I put it together as stated on the diagram.  The two back pieces were not the same distance apart.  If I left the bottom piece on, the top back was to far apart for the predrilled screw holes to line up. So I took the bottom board off and put the back on and had to adjust the bottom board on the back by 3/4 of an inch.  The bottom bed still fits under, but it is a tight fit in the back.  I still really like it!  Definitely room to improve!