we went twice. the first time was interesting, as pp's have said beautiful view. second time we were bored. its one of those been there, done that things.
its not the cheapest thing to do and you really dont' get a lot of value for the money however its nice to try once. its $21 per adult, $10.50 6 to 12, free 0 to 5. the plus of this adventure is you get to do it when you want and you don't have to wait for tons of people to gather together.