I'm going to keep this review nice and short.
I liked this movie a lot. We get to see Ryo and Kaori in a new movie, as well as Miki and Umibozu. I liked the story and the plot of the movie.
However, it did lack in the "mokkori joke" department.
As I consider this movie to come after all of the other shows, I found some of the less important detail flaws to be a bit distracting, such as Umibozu not being blind (he becomes blind later on in the series, also blind in Angel Heart spin-off. this isn't much of a spoiler as its only highly story-relevant in one episode).
9/10, would recommend.