I've put together many, many pieces of furniture.  The directions that accompanied this piece were without a doubt the worst!!!!  Parts were mislabeled on the instruction sheet.  The instruction sheet does not indicate that end panels are side specific so that when you are done, the holes for the shelf hardware does not line up side to side.  To correct it I would have to take the entire unit apart or 1) drill additional holes that line up or 2) cut the sheleves narrower and use surface mount hardware.  Based on the terrible directions, I would not recommend this unit.