Boink! Boink! Boink!
This is the sound of my 10Ft pole touching the thread
I can only talk about the 22, as I haven't flown anything else.
So I'm abstaning, because anything I say could be construed as robbie defending.
But in short, although not designed as a trainer, I think that when flown to limits it becomes an excellent one, as other model out there have higher inertia rotor systems, and the transitioning Robbie pilot may not have transition issues later on.
It's those "mean" qualities, IMO that make one stay on their toes when flying it, and that leads to increased skill later on.
Ok, flame on ...