The thing with Vatsim is, and any virtual aviation community. It just can't replicate the real thing to the level of being used as a reliable training aid. Don't get me wrong I have been connected to Vatsim while I have done practice XC flights and it has helped me to pick up on things that I might have missed when doing it for real, to be honest thats more down to flight sim than Vatsim. If anyone is planning on using it as a aid for flying then be careful you don't get caught up in bad habits like I have.