I was lucky enough not to have very long lines. The longest line I have waited in was for the Simpsons ride and House of Horrors. The best rides in my opinion were the Transformers ride and the King Kong ride, cause of the 3D experience. Prepare to get wet in some rides (if you are unlucky seated). The special effects show wasn't that interesting and a lot of people left during the show. The Blues Brothers was a good show and I had a good scare in the House of Horrors. In line of the Simpsons ride you will have enough entertainment, which makes the waiting a bit better to endure. Revenge of the Mummy is mostly a ride in the dark, which made it less attracting to me.
I didn't see the animal actors nor the WaterWorld show, so no comment on that.
The morning was the best time to get your picture with any of the characters walking around. I think they avoid the warm weather (which I can totally understand). Talking about warm weather and cooling down: they have cooling stations scattered around the park spraying a cool mist from fans.
It was nice to see, but I will not go again. Even with the 15 dollar discount (for SoCA residence) it was a lot of money. I would rather visit other parks with more rides. Parking is 15 to 30 dollar (it's not a far walk if you take the 15 dollar parking, so I would recommend that unless you are disabled and/or have trouble walking).
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.