Ordered 3 of these to finish off my home office.  They are sturdier than you would expect for the price.  Agree with other reviewers that the back is flimsy and you can see the crease where the backing is folded during packing/shipping.  However, once you have items on the bookshelf, this is a non-issue.
Putting these together took a long time as the directions are not for the faint of heart, but once you do the first, it's pretty straightforward to understand why things are assembled in the order - the second and third go much quicker.
If you are looking for an affordable, library-style bookcase, these should fit the bill!

Pros: Sturdy, beautiful finish
Cons: Assembly takes awhile, heavy packages