I don't really get why people enjoy film reviews like this. Maybe they're entertaining if you haven't watched what they're talking about. Most of the time when I have seen the movie in question, though, I just get kind of annoyed at their takes on certain things…
I think it's for seeing different perspectives on films, or maybe from people that research into them little things about the production that may be neat. Also it's reminiscent of Siskel and Ebert, but longer. So maybe there's an entertaining quality to it as well.