Went there last summer. It's a great aquarium but the big window into the whale shark tank is AMAZING! When you have two 8 year old boys who sit in one place on their own for 30-40 min just staring, it must be pretty good. We actually had to tell them it was time to get up and move on.
Unless you REALLY just love dolphin shows, I would skip this one though unless you are taking little kids. In all fairness, it's a well produced and played show, the story line is just very child oriented.