Solid game. A lot of fun. Definitely can use some improvements, particularly in score balance, but lots to do and keep people interested. Great art, theme, music, and overall generates a lot of excitement for people.
In fact, one of the only pinball games teenagers that visit my house are willing to play (they generally find pinball quite boring).
Everyone's got an opinion though. I find the "ghostbusters sucks" phrasing a bit hyperbolic. Not perfect, maybe not to the taste of some, but still an impressive machine by most metrics. It takes quite an ego to claim it sucks flat out.