As far as educational cinema goes, this beats 'Invictus' with approximately 750 %.
It's elegant film-making, an unfolding of the Scorsese know-how in a brilliant moral- and history-lesson on the 1980s and late -90s.
It is also waaay too long (Three fucking hours!!) (That is a semi-quote from the film, btw.) but thanks to my daughter's deceptive sales technique, I wasn't aware of that when buying our tickets (or I most definitely would not have bought them).
Taken as a work of art, however, this film contains nothing you haven't already seen in a heap of movies, if you are a movie-goer over 25.
In a nutshell, it's Scorsese, so it's great, but it's not great Scorsese.