I've seen some dudes rag on here about the acoustic simulator, and I've never understood why. IMO it does a very good job - even with nylon sounds.
A dude on facebook asked if the simulatorwould work for a Rush - Farewell to Kings intro, and most guys said "nah". I did a quick iphone demo of that intro and I find it perfectly acceptable in a live situation to use the acoustic simulator instead of switching guitars. Take a quick listen to the recording in the drop box link, tell me if you agree or not.