I've never seen a GA simulator that was worth a plug nickel for stick-and-rudder stuff. As Bill points out, it can be handy for learning navigation (pretty much the essentials of the insturment rating course). For that, X-Plane or most of them are reasonable (even the ancient Microsoft Flight Sim worked OK for this). If I were to buy now, I'd be looking hard at TouchTrainer. My neighbor has a PhD from Harvard in flight simulation. I'm waiting to see how her project is coming out (she's going after FAA approval).