I found it a great help. I learned to torque roll on G2 last winter. Some planes are easier to TR than others. Start with the easy ones to get your head to start thinking about the proper inputs for corrections. Once you get to the point that you could TR it all day then go on to a harder one. (there are several available to download form the G2 website) Keep working up through the planes that are harder to TR and eventually you will be able to TR most any plane on the simulator.

One hint is to zoom in on the plane (I believe the F2 key will zoom in) and practice kind of low. You want to be able to see the rudder and elevator deflection as you are learning. Later on practice by looking at other parts of the plane and not the tail.

As for other 3D maneuvers, some are more realistic than others. Elevators and harriers are okay to practice with but harrier rolls I've found are much harder to do on a real plane than on the simulator. I also find the sim won't do a waterfall or a blender very realistically (at least the variety of downloaded planes I tried).

It's a great tool for practicing slow rolls, point rolls, and rolling circles.

Definitely worth the price from my experience.

Best of luck.............Mark