I won't be there, but I was on Saturday. It was my first time, and it was great! The first 2 hours of the day, we walked onto every coaster and even had a train or two almost to ourselves. Even later on, the only bad line was at Son of Beast because they only had one train going. I don't think the time I waited was worth the awful headache that thing gave me!
The pendulum ride (Delerium) was fun, but short. And the new Scooby Ride is great- after 4 times, we finally stopped getting back in line. I got a 1530 twice, I figure it's good practice for when I ride Buzz in May. I'd also recommend checking out the new 3-D Spongebob motion simulator movie thingee if it's open. It's a funny movie (especially if you're a Spongebob fan), and the I found myself ducking to avoid the 3-d effects even the 2nd time I rode it!
Sorry for writing a novel, can you tell had a good time?