The new convention hall area and configuration, is, in a word, superb. I really feel like next year will especially be a good year to go to Gen Con. Right now, the city streets are still a mess as they try to get ready for the Super Bowl. There should be plenty of hotels looking for business after the Super Bowl concludes, as well.
My favorite product of the show has to be my Inkwell Ideas DungeonMorph Cards. With a box of 90 DungeonMorph cards, I can randomly or deliberately mock up a dungeon in no time flat. Here's a photo of a quick layout I did, with the keychain and die to show scale: