I was a bit disappointed in the quality (flimsy back).  Also the top and bottom horizontal piece didn't fit (they were too short).  I called the manufacturer and they sent two new pieces for the top/bottom.  The two new pieces are here and still in the box... hopefully they will fit.  Modifying them will require me to take everything out of the book case and go back to the assembly stage.  I think I would purchase something with a bit higher quality if I were to seek something like this again.  I am keeping this as I didn't want to deal with whatever might be required for a return.  From a distance, it looks ok.