See it if you like charming performances and innovative ideas that poke fun at Christian concepts of heaven and hell (and dances to them).
Don't see it if you're a religious Christian. Or do. I'm not one so can't really speak for you.
See it if you want to see an innovative musical both in terms of content and staging. You like gay themes that have universal meaning.
Don't see it if you aren't interested in family dilemmas, you only like traditional happy endings, or you don't like musicals. Homophobes won't like it.