Finally got to it, and I really liked it. Now I'll admit I haven't seen Ghostbusters in few years, but it seemed very faithful to the spirit of the movie. Your character, a new guy joining Ghostbusters, doesn't speak at all, which is no problem. Bill Murray, on the other hand, speaks a lot and in such a ... uninterested... voice that is very funny.
Graphics are good (But then again, anything from 2009 that looked even 'okay' back then looks good to me now), I really liked how the proton pack is detailed, considering it covers your entire back and you'll be staring at it the whole game. Releasing the steam to cool down (basically reloading) was weirdly satisfying, so when there were no ghosts to bust, I sometimes shot up the scenery just to be able to cool down.
Environment is quite destructable, which is a need when you are busting ghosts in museums and luxury hotels.
Controls (w/ mouse) were a little awkward, but I got used to them after making some adjustments. (maxed up vertical sensitivity, lowered horizontal)
In the end all is fine and the hero got the girl. (no, not the PC, Bill Murray)
Rating: Solid 3 golden sloths