Tru-flite is a true simulator not a game, it does not have as many aircraft/helis as other sims but when I asked the company owner he said that the aircraft/helis are made out of measurements of real ones and they have flown the real ones of these models to get the most accurate flight peramiters they can.

(these are in my opinion)

Advantages of the sim:
*realistic aircraft
*no breaking apart crashes (teaches you to fly not crash)
*Probally the best heli sim around.

Dissadvantages:
*can't prop hang
*limated aircraft
*no way to make user made aircraft

Alan