This is a great place to go hang out for a couple of hours. There are used books and some new books. You may not find an overabundance of the books currently being released or the top books of New York's Bestseller list, but then again, one day, you might. And even the new books are discounted from the "big" stores.
What's more, you know that bag of books sitting in the back of your garage with no place to go? Take it them and get a store credit, or cash out, your choice.
I would have rated them "excellent", but I find that most (not all) the people working there keep their heads down and aren't super friendly. There should be more than one person who is willing to walk you directly to the shelf and smile.