If it's better than the NES Ghostbusters then it'll be good.
I can't even begin to tell you how much I loathed the NES game. Such a piece of shit.
I would sit there for hours trying to figure out how to get back to Zuul. The one time I did I made it to the end and died. Didn't feel like going all the way back and trying to figure out how to buy stuff and drive on the highway without running out of gas. One of the worst NES games I ever owned.
Playing GB right now. Way better than I was expecting. It plays just like Gears of War minus the cover thing. Storywise it's more of a straight sequel to the first movie as it utilizes music and sounds from the first and has a few nods to the second film.
Look for the painting of Vigo in the headquarters and listen to the hilarious shit it sais.