I got mine yesterday...yay! Like Inkthinker said, it's not the highest quality of book, although it's clean and sharp looking, it's not as solid as a hardback. But the whole idea of getting it early is way cool and it is a collector's item. Proof that you got the early batch. I found some of the cover markings interesting, such as "Uncorrected Advance Reading Copy - Not For Sale" as well as the Marking Plans information on the back cover, as well as future ordering info that book stores will be able to use to get displays, etc. Just another side of the industry that you never get to see up front.
I've always liked "backlot tours" almost as much as the actual production (what I wouldn't give to be on the set of Survivor without having to actually be on the show!) To me, this is a small "backlot tour" into the book marketing industry. And now I have my souvenir for the trip!
Currently devouring...will bring my copy to the book signing.