Fabulous. I had no issues assembling it.  The worst thing was getting it out of the box.  It is very heavy so assemble it in the room it is going to be displayed.  Place the left and right legs on the floor.  I placed a dining room chair on each side and was able to screw in the shelves easily.   Have a flashlight handy to allign the holes before inserting the bolt screws.  It is heavy so ask someone to help turn it over.  I highly recommend this  bookcase.