I don't completely agree with this review. For instance if ghost reacted when you fired a proton stream at them then... they wouldn't be able to fight back at all. They would have to stop reacting and start doing something at some point, otherwise it would get boring.
I don't understand the comparisons to Gears of War. All they share in common is that they are both third person shooters. But Ghostbusters has a much more arcade feel to it. There is no cover system but you can dodge some attacks using the jump buttons. I thought the story was fantastic, and any moments were "deja vu" occurred were pretty well explained and fit in with the rest of the story. I really felt as if I were a part of a new Ghostbusters film while I played.
The only real issue I had with the cut scenes is that the lip sync didn't match some of the time. But I quickly forgave the game and soon forgot all about it because the voice acting is so great. Though some will say that Murray's portrayal of Venkman in this game was maybe a little too mellow.
There were some really great set pieces in this game and everything fit in with the Ghostbusters lore perfectly. And there are so many references to all things ghostbuster related. There is a reference to the old C64 game some where in the Firehouse, references to the movies, to the cartoons, etc.
Also, the checkpoint system works pretty nicely. They seem to anticipate when and where a player might have trouble with the game. And if you die you don't have to go through much to get back to the point you left off at. And the AI isn't as bad as they say really. I found that they saved my ass about as much as I saved theirs. Sometimes the team will get split up and you may only have one other guy at your side. And at that point the game is usually more difficult. But I really enjoyed how challenging the game was even on normal and I am about to start a play through on professional.
In the end, I'd say that if you are a Ghostbuster's fan then this game is a must have. If not then this is still a pretty damned good game and you should play it.