Sierra Academy has a very very thorough training program. I am studying there now. Like JJ says the equipment and the buildings are worn down and when you have 8 of 9 Duchesses in maintenance it can be very frustrating but the training is great!
The cost of living around here is expensive though and the quoted prices they give you are a load of **** ! Their hourly hire rates for a/c are twice as much as the FBO's around here so I guess you get what you pay for.
Weasil