If you can tap dance, juggle and chew gum at the same time you can fly helicopters.
If you can do all that, while standing on a beach ball, balancing a stick with a spinning plate on it, on top of a basket ball in your hands, THEN, and only then, can you fly a helicopter in the real world, let alone the sim world.
Having said all that, the MS sims, like FS9 or FSX, are notoriously bad at simulating helicopters. They just don't handle the physics correctly.
BUT: Add the program HTR (Helicopter Total Realism) to change things, and LO! NOW the sim handles the physics, and control inputs/outputs, correctly.
It was written by an actual Aeronautical Engineer, who had specialized in helicopters. He had the assistance of a number of real world helicopter pilots, both civil and military, as well as a couple of superb simulator helicopter designers, like Jordan Moore.
Great program. Improves the helicopters to something approaching realistic. I can't stress it's importance if you really want to see what it's like to fly a helicopter.
The biggest complaints I've heard from some real-world military helicopter pilots I know, is that there's no "seat of the pants" feel, which apparently is a great deal of the pilot's input from the helicopter. Instruments are fine, but it's the butt that really tells the tale. Obviously, the sim doesn't handle that at all, but, as to the rest, HTR plus FSX is actually a pretty good combo.
I sure enjoy it. I'm looking to either find an config, or work up my own, for the MV-22, to see how it handles having HTR running. More to come on that project...
Pat☺