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I have to say the Warhawk room with their sand table thing, and the Resident Evil room with the scavenger hunt (with a nice little prize at the end ) are basically epic. Not to mention the God Father II room has texas holdem'. The Guitar Hero Room is basically empty, but I can just feel like they're gonna be adding more to it later on. These Developer rooms are really quite nice, got me logging back into Home. Also, the costumes (especially the SFIV) ones are pretty sick. Honestly, if you haven't went into home in a while, I suggest you hop on back in there, and check out the new stuff they've added.
oh, and one last thing, its nice to see people I know finally have it . It was boring as hell when it was in beta for what 2years?