I discovered Shinkai's movies because of 5 centimeters per second. A film that struck me deep, and which I really loved because of it. I bought his earlier works, but didn't like them as much. I had high hopes for his new movie, this one, but seeing the themes and the more magical world it would play in, I was a little disappointed. Still I did watch it, together with my brother, because we also enjoy Miyazaku movies.
The movie is visually very stunning. It's the best animation I have seen, so pretty. I would give it a 10 for that.
The story, like many other Japanese movies, contain a lot of "what the heck ?" moments, where sudden emotional states of the characters are totally not relatable, or feelings seem weirdly suddenly deep. It makes you wonder about how Japanese people/culture handles emotions and feelings, and if Japanese people themselves can relate to the characters in the movie. Miyazaku movies have the seem issue, like protagonists feeling sudden love for someone they just met for a few seconds...
The story itself contains some mythological elements, and it left me wondering if those elements are more familiar to Japanese people or are embedded in Japanese culture. However, it's always nice to see a more unfamiliar story arc. Negative point is that much is introduced without really explaining things, and therefor you are left with a lot of questions about things.
I thought the minor violence in the movie is a bit negative because of the graphical display of it. I don't think that was needed.
It's not as good as 5 centimeters, but bearable. Really hope Shinkai will return to it's non- fantasy setting in his next movie.