Didn't play flying simulators at all before that. But this one is really amazing. Full control of the helic. Battery, Autonomic Power Unit, Starters, up to 3 engines (depending on helic type). Moreover, you can manually control all this things from the helic panel and observe all data including rpm, altitude, etc. (you can observe your cabin and switch tumblers, realy amazin!). And it's quite hard to play, but depends on helic type. Demo allows you to "free flight" on quite large area on different types of helics, no time limitations. And also great detalisation, you can see roads and cars moving on them, very realistic. Also there's a tutorial that allows you to train flight basics.