If you're a fan of the movies you'll love the game.
The dialogue is really good, original and funny. Bill Murry kept rejecting scripts for Ghostbusters 3 saying they weren't funny enough. This is pretty much the 3rd part of the story. If this game had been a film as well I think it would have done alright.
Only a few levels into it but enjoying every minute. I've seen plenty of ghosts and the levels take you back to the films with a chance to explore the places you saw in 1 and 2. Including of course, the Ghostbusters HQ, being able to use the pole as well! You can tell that a lot of thought and effort has been put into this title. It looks good and the variety of equipment keep the game interesting. Very pleased with my purchase. And would recommend to anyone. Its not too expensive now either.