This is not a review, rather just a short comment about the movie.
Pros :
+ The art. Beautiful and eye-catching.
+ The characters. They are well written and well voiced.
+ The development of the plot. Each character develops well enough throughout the story.
+ The soundtracks. Very well composed.
Cons :
- The way the story ended. I just don't like that kind of hanging ending.
The story has high re-watch value. Also, the quote in the movie "time waits for no one" left a deep impact on me.