Disclaimer: I really like the Evil Dead movies.
Awful beyond belief. Had to wait outside for thirty minutes after the show was supposed to start. Acoustics were so poor that the lyrics were incomprehensible. Audio was canned -- no live band.
The show itself is unwatchable. Low budget is fine, but the book itself and songs lack any sort of cleverness or subtlety. The jokes are repetitive and consist mainly of forced lowbrow; the MC had really nothing to work with during the audience participation bits. How this has run for over ten years is baffling; I feel bad for the performers, who have nothing to work with here. This is the first show I've ever been disappointed with in Vegas. Walked out at intermission. Don't make the same mistake we did.