Well, some old films are just really hard to appreciate now. Like, if you're really not into cinema, Citizen Kane may look very dated in many ways - but if you are, and know a bit about the impact of the film, it's an indisputable masterpiece. It's a bit like homework I suppose, but for your favorite subject.
I don't think The Godfather 2 is really like that though. I think it can easily stand alongside anything made now without requiring much explanation or anything (except if you haven't see Pt 1). And the appreciation really came afterwards: it got lukewarm reviews at first and only rose to stardom some years after. As I said, I get that in terms of film making (and I meant to include acting in that), but the huge praise for the story of Michael Corleone's fall (socially/psychologically) to me is excessive: I don't think it's
that strong or powerful. That might be because I've seen too many similar narratives afterwards, but the same goes for the reappraising reviewers. So, yeah.
(I'm not sure anymore whether this at all connects to what you were saying, but anyway!
)
Yeah, I've read more of his reviews over the years and it's not someone I'd rely on to figure out what films I might like. I find it interesting to read detailed reviews though; I find out a lot about what I missed in the story, interpretation, and art of films, and those are always good learning moments - even if I disagree. (For example, I thought it was very interesting to read more about
Nocturnal Animals after my discussion on here with
@oneniltothearsenal about that film - even if I still can't much appreciate the film myself.)