I'm a beginner and I bought a slightly used Hangar 9 Alpha RTF with the radio equipment. The evolution engine seems to have plenty of power for me. Even though I haven't soloed yet, I just bought a full eliptical low-wing ARF for my 2nd plane and am designing a seaplane that I'll scratch build except for the wing as a fellow flyer has an extra one he's giving me. Now that I'm learning more about the equipment, I feel confident about selecting servos, receivers, and the other gear needed for an ARF or scratch build.