I needed some time to get used to the controls but after that (and finding how to change camera mode, it should be told in game not only on game page) it was quite fun to play. Cockpit or chase camera should be default one. Classic camera is not the best option because you can't see enemies behind the view. Also I love how interface looks in cockpit camera, so immersive! The game could use some more sound effects and also some nice music while shooting bad guys would be nice.
I don't know if it's my slow PC but right after starting level framerate gets choppy for a while and even slight mouse movement turns my helicopter upside down making it unable to start. Despite mentioned flaws the game have very big potential and I'd love to play it more when campaign mode will be released.