The choreography and stuntwork for the action scenes are excellent and far better than what I was expecting for a Japanese movie. It rivals any other movie. The story and the mannerisms of the actors are uniquely Japanese, so don't expect it to be a Hollywood movie. It is a very entertaining story and the acting is fine, again better than most stuff coming out of Hollywood these days. Some scenes are very bloody, but that's typical of Japanese movies. Don't overthink it.