Honestly? I would put this right up there with "Princess Mononoke"
I saw this in theatres the day it came out, being a huge manga fan (contributed by the fact that I'm Korean), and was not disappointed in the least. As I said, this movie ranks up there with "Princess Mononoke" and "Nausicaa of the Valley of the Wind", the two greatest works of anime ever, and also pure anime classics. However, although still manga, the art style is still a bit different than Miyazaki's, so if the only anime you've ever seen is by Miyazaki (though that isn't too bad of a thing), be prepared.
Violence was the onyl issue I found in the movie, but wasn't too bad in my humble opinion.