He was one of those directors that was certainly a Hollywood director and clearly shot movies to make money and be Entertaining. But had enough of that indie thing going on to actually have a voice. Or at least that's my opinion on it. Though if I met his ghost I am going to say that the funny thing about watching Ghostbusters as an adult versus as a kid is that as an adult I am like "yeah EPA guy you're an asshole but you are right there really shouldn't be an unlicensed nuclear thingamigger in a random basement in a major population center". You know as evidenced by how much worse it makes things before they fix it again. And his ghost will probably be like I've heard that so much lately but happy you liked the movie.