The movie was great in my own opinion. Great art style plus story building was good. The relationship development and also the main character self development is good.
But I feel there are still some parts inside the movie that didn't really got explained however that also make it part of the mystery to be discover and also be made to solve by the watcher while watching the details inside the movie.
I feel the animation art style is actually very nostalgic and indie kind of style which make it worth the watch once you sat down and get into it because this applies to me.