Quoted from pinmister:

Ghostbusters can be brutal on location if not set up properly and it can be frustrating for some people.
-Right ramp is easy to hit-no problem
-Magna Slings are best innovation in the last ten years of pinball. Yes they are unpredictable-they are supposed to be random and keep you on your toes. I love the magna slings!
-Scoleri pop-ups are perfectly placed and give the player a true risk vs reward shot
-Wider flipper gap because that is Trudeau's signature and it is on all of his games. Makes the game difficult and unique-you have to adjust your flipper control techniques for wider gap.
-While I do agree that the code needs a final polish, I also have never gotten even close to the wizard mode on this game. It reminds me of the people that complain about unfinished wizard mode code on Wheel of Fortune. I will never get to wizard mode on WOF(and I seriously doubt that anyone would be able to anyway), so it really does not bother me with incomplete code-moot point.
Ghostbusters is a masterpiece and one of the best games made in the last ten years. I am sorry it kicked you in the nuts and you gave up. May try a dialed in one in a home environment, and it also helps to have awesome music and sounds from Cleland's remix.