Being as most good co-axle helis are balanced enough to put the transmitter down and watch it keep a pretty stable hover in no wind (do with with a CP heli and your in for a repair bill), I'm not too sure if much other than orientation will have been taught. I say this as while I fly a nitro CP heli which did have a lot of transferable skill sets when moving onto planes (well for me anyhow), when I have flown a friends co-axle, I didn't get a feeling that there was a lot of involvement required from the pilot, and that you had a lot of time to pause and think out your next move - even when compared to my own .40 trainer.
So taking that into account, when flying something that on landing and takeoff does not really allow you that ability to pause, take a break and think out your next move, and is much faster re it's overall speed, that's where the weakness of that ease of use will come into effect and leave you unstuck.

If you really want to practice at home, and are serious, get a good quality simulator - mines saved me $$$$$$$ !