Only problem I have seen with what was thought to be RF with a 2.4 turned out to be a bad RX. It really does make it easier. The new one I have on my bench is going 2.4 just for the set up ease and I don't want to risk it getting shot down. All my planes get a radio check here at home with engine on and engine off before I bother going to the field with it. If it doesn't work here it isn't going to get any better at the field.