G2 is great but the most expensive. Aerofly Pro is supposed to be better and more realistic. Reflex as well. I don't understand why these makers don't put out a 1 plane/heli demo version so you can see for yourself before spending $140-$200 on the more expensive sims. I'm very happy with G2 so far. You really want an up to date computer to run these sims on. If you buy a computer set up for gaming you'll get high frame rates which is really essential. Buy a gameport/usb interface for your radio and try out some of the free sims (FMS, Pre Flight) and demos (Reflex has a noninteractive demo I believe, RC Plane Master has a 1 plane demo). Lately I haven't taken any planes out, pack everything up and head to the field or sit down and start up G2 .