Bookshelves are beautiful and real wood as opposed to MDF.  Assembly takes a while but is pretty much foolproof (I would recommend attaching all shelves and dividers to one side first and then attaching them to the other side.  The reason I gave them 4 stars ilo 5 stars is that I did find some flaws in the finish, but only 2 that were both significant and in a place I couldnt hide them.