I have just received XTR last week and it is great! Much better then G2 and better eye-candy then aerofly pro. I haven't yet explored the flight differences between XTR and AFP, both are great programs and I fly both. More time will tell which airplane modeling I like best. G2 is a great basic learning tool, but needs extensive flight modeling upgrades to be competitive. I use G2 for flying with others on the net during the winter and AFP and XTR for learning new manuevers.