Once I put the difficulty to easy, it became a lot more fun.
After starting the game on normal, I quickly realized about an hour into the game, that the difficulty of the ghost busting gameplay was too frustrating, and I almost quit after continuously dying on the first boss battle.
How they have you capture ghosts, and try to maneuver them around into the trap, while trying to not get knocked down and have to start all over, was just horrible.
Luckily you can change the difficulty when you are loading up, and I picked it back up on easy, and had a wonderful time enjoying the story and playing the game without the frustrating gameplay getting in the way.
It's a pretty long game too, and very detailed. I was pretty impressed. Had fun looking for all the hidden stuff and trying to scan the various ghosts. Pretty cool.
The graphics were good, and the sounds were fantastic. I play using headphones, and a couple times I had to stop and take them off to see if there was noise coming from behind me, only to discover it was all part of the soundtrack - very cool.
If you are interested in the movies, this is a wonderful extension of the Ghostbusters world.