This is one of the best films I've seen from the silent era (sad to say, I've yet to see too many with the exception of Chaplin/Keaton stuff). Very visually brilliant, with insanely influential style in editing and composition. Really unique (especially for its time) camera angles and extremely hectic editing. Definitely a must see for the film nerd.
The downside is that it is a bit too in your face about its politics (I have no problem with politics in film, as long as they are subtle or at least somewhat ignorable as a backseat to the story). Also, it's not an "entertainment" film, which is fine, but it's not something I'm going to watch a billion times. This is art, plain and simple, like it or not.
Worth an A+ for influence alone, but based on personal enjoyment, I give it an A-.