I have been using truflite for almost two years. Works good. I have a version without raptor and never bothered to get realistic settings for a raptor. Instead I use a futura 60 in the sim.
Physics are quite good, of course the futura 60 has much more power but I moderated the simulated 'engine' to have less HP. Most disturbing difference is in wind sensitivity, my real raptor a better gyro so its tail wags less in the wind, but instead it starts rolling a little which the simulated futura does not. Inverted the futura is more stable than the raptor. Also wind gusts have quite particular behaviour in the Netherlands, I could not reproduce it with the sim settings. In reality you also hear the wind coming.
Anyway, good value, I consider the simulator important for training reflexes, not for being 100% realistic.