See it if You and your kids want to do something different and fun together. This was cooler than going to see a movie!
Don't see it if You child (or you) can't (or doesn't want to) follow detailed instructions and remember a sequence of movements. Best for even numbers.
See it if Your family wants to get some insights and first-hand experience about stage fighting (slapping, punching, choking, and sword skirmishes).
Don't see it if You don't want to be a full participant, don't want to break a sweat, or are unwilling to pull your punches.