I would count myself as a Scorcese admirer rather than fan – I greatly enjoy his films, but I haven’t seen all of them (eg The Aviator). This, however, seems to me to be his best yet, principally because I found it so orthodox – thanks to the last line of dialogue, which raises it from 4/5 to 5/5. Grim, but wonderful, and with some profound lessons for our culture. Highly recommended.