here's our experiences(my group)
Really enthusiastic DM, nice guy, but, TOTAL TPK!! Me and 3 of my friends got in on generics. Probably ten or 12 people in room. Everyone created a quick back story, then we dropped in a circular room with a GIANT d20 in the room. Then, we all died, in one form or another. well, let me rephrase; six pc's were in room at a time, and as each pc died, the backup filled its place(2 of each class, i.e. theif, cleric, figher, etc)I dropped from ceiling, hit the d20, had to roll a saving through, and missed it. and died. : ) It was fun just to watch the heroic and often hilarious ways we all bit the dust. i didn't mind it really, although i wish we had a chance to play more.
Although we tried and tried, we coudlnt' get back in again. On saturday afternoon, i think, one of our guys waited and got in on a session with a guy who was one of the first editors at Dragon mag, back in the 70's. Appearantly a frequently published writer, hung out and worked on AD&D with the Gygax back in teh 70's. Super cool guy, grey beard, grizzled, big hat, reminds you of Wierd Pete a little bit, or Nitro(from KODT), with his attitude. "this is OLD SCHOOL D&D BOYS AND GIRLS!". he wrote his own little module for the event, which he handed out to the players after, and he autrographed them. heard they were going for like $200 each on ebay that night.
So, form all accounts, each DM did their own thing, but all tried ot have a great time.And, everyone did seem to be in teh spirit of the game. I just wish i'd got to play more.