Very sturdy and looks great.  The bottom rail piece was received damaged - not sure if it was from shipping or occurred prior.  As it was just cosmetic, I doctored it up and used it as is.  The shelves are adjustable, but not adjustable enough if you have lots of tall books.  Adjusting one shelf for taller books limits the amount of space between the other shelves to the point where they can only accommodate typical paperback books, or you have to stack books lying down.