I needed certain size shelving and this worked perfect! It almost looks build in to the wall. It was somewhat complicated to put together but I figured it out and put all three together in just 2 hours. These shelves are HEAVY and really solid. I need to finish unpacking and put all my books on them, but I am not worried about them not being able to handle my textbooks because of how thick the shelves are. I am very happy with my purchase.  
Of note, one of them arrived damaged on several of the boards, probably in the mailing process, so I had to turn it around from the others, I think it still looks good tho, but I would be upset if I had to see both sides. Returning these suckers is almost the same price as buying one! So make sure you really like them.