We had a great time at the show. It is very campy, but funny and entertaining. My mom came (she has no problem with profanity - of which there is plenty) and, although she hasn't seen any of the movies, she had a great time, too. If you like the movies, like live theater, and don't have a total stick up your ass - you'll have some fun and a few laughs.
The four stars is only because the sound was garbled at times, the costumes were falling apart (not only in the ways they are supposed to after demon attacks), and the people working in/around the theater (cocktail waitress, bartender, etc.) left a lot to be desired.