It seems to make sense to me, but I am sure there are circumstances where conventional CPR might be more effective.
It is unconventional and probably effective, nice to know about.
With children, where respiratory arrest usually precedes cardiac arrest, mouth-to-mouth would help.
One of the weird things about CPR is that the recommended pace can easily be achieved by running the following song through your head:
Staying Alive, Staying Alive,
Ah-Ah-Ah-Ah, Staying Alive