See it if You enjoy dark humor and outrageous characters. It's rather like a Monty Python skit, which is a good thing in my book.
Don't see it if You dislike Keystone Cops-type humor, adultery, or actors who break the 4th wall (acknowledge the audience).
See it if You are literary bent, you are a writer, you know a writer or you've ever had to compete with someone who is better than you.
Don't see it if You prefer meatier storylines. SR! delivers a super-fun night/day at the theatre. You'll walk away happy but not necessarily pensive.
See it if You like South Park - outrageous exposes of absurd human behavior that utilize caustic and often raunchy humor
Don't see it if You are offended easily by non-PC humor.
See it if You love architecture and/or photography. *I like the parallel of the 2 characters tearing each other down & building each other back up.
Don't see it if You're looking for a history lesson about Old Penn Station. You prefer lighthearted plays with immensely likable characters.