This is indeed a beautiful bookstore. I spent an hour in there today just browsing. It is much bigger than I thought it would be, with a selection of very interesting books. It is not the kind of place where you will see a dozen copies of the latest John Grisham novel as soon as you walk in the door.
One thing that I found was interesting is that the books are laid out in logical sections, but none of them are labeled as such. This helps to encourage relaxed casual browsing, in my opinion.