I will throw in another vote for Aerofly Pro as a learninng tool. Got mine last week and have put about 10 hrs of time on it. It's simply amazing how closely the flight characteristics of OMP's 65" Yak resemble my real one. I've definitely gotten better at hovering on the sim, but haven't been able to try it out at the field yet. It's also helped me in flying around in knife edge. My only complaint about AFP, and it's really a minor one, is that maneuvers that require a lot of altitude to set up, like the blender, is difficult for me because the plane's position is hard to judge when it's right at the top of the screen. I tend to lose perspective on where it's at, and how high it is above the ground.

Bottom line, if you want to learn 3D, you really owe it to yourself to get AFP. It's worth every penny, and then some.