I LOVE 2.4ghz Spread spektrum technology. (Cheque please, Horizon Hobby's). I used to fly 35mhz and I had more than one occasion where a unexplained glitch would make my heart jump,uninvited, into my Throat. Quick pulse check, bring heli back to earth and investigate possible causes.
The last time it happend I had just come out of a stall turn and on the fly by, directly in front of me, she glitched, full negative pitch....... Phwump!!!! Now, I know that this is more attributed to electrical interference, created by the heli itself, than by somebody else sharing the same frequency as me. But since I have changed to DSM2, I have not had one instance where the helicopter does something wierd, that and the added confidence that due to the benefits of Frequency channel hopping, Dual receiver redundancy and Tx/ Rx model binding, makes for a more relaxing flight. Especially when those blades are rotating at 2000 rpm and u have spectators standing around.