In general the USPS has done a very good job with our media-mailing of hundreds of copies of GG3 in the past month (and a bunch of our other books--Eileen's game cookbooks have been heading out regularly as well), and so far when customers haven't received them within the 5-7 workdays the USPS predicts for media mail it's not because the book(s) didn't arrive at their PO in the predicted time. Mel's book, for instance, was mailed on Wednesday, September 9, and made it to his PO in Texas in five working days.
Another customer e-mailed Eileen today, saying his hadn't shown up either. He pre-ordered in August, and like almost all the pre-orders it was mailed from September 9th to 11th. Eileen checked the tracking # and it also made it to his PO in the 5-7 working days--but has been sitting in a locker there, apparently because his PO box wasn't quite large enough for it. Dunno if his PO failed to inform him--we have the same locker-delivery now and then, and they leave a locker key in our box--but that can happen, though in my experience very rarely.
