I went here for Valentines day with my girlfriend and we had an amazing, very memorable time.
The price is what it is - bordering on insanity, however you do get what you pay for.
We choose to do the scuba diving and wow was it great. There are a number of other dolphin experiences, however if you are scuba certified I think this is a great option as you really get a better view of the dolphins, and a different interaction with them.
The handlers were all amazing, very friendly, and definitely concerned with making sure we had fun.
We had a chance to hold the dolphin, feed them a fish, and a few other things. Just incredible.
While (of course!) it costs extra, I would recommend buying the pictures as they take tons of photos of you which are of great quality and really capture each moment.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.