We were there last tuesday and the show got rained out after 30 min or so. Smaller crowd, perhaps 20. Our 11, 9 & 5yr olds enjoyed what we got. Beans moved up into the castle and we did conch blowing contests which was a lot of fun for the kids.

Im not sure Id build an itinerary around it, but if you are at Leverick on Mon-Wed Id go for sure.