I have lots of experience flying rc planes i have two and I got behind the sticks of the copter and was doing good to get off the ground straight and go forward and backwards.
As for the RC glider that is one of my two planes I have a Gentle Lady glider and a P51 Mustang wich is powered. The RC glider is actually quite easy to fly imo as long as you find a nice park with a band launcher or you have enough room to setup your own. I would say a powered launch is a little harder to fly.