It's hard to describe the movie to someone used to American cinema. It is about deep introspective feelings, reminiscent maybe of Pixar, but without the happy happy, joy joy animation style and forced funny dialogue. It is partially a musical, but only in the context of the story and the songs themselves convey information and are not a platform for someone to flaunt choreography or voice talent. The style of the animation is simplistic, but without the obligatory bits of craft that are there to show the animation was intentionally and meta-artistically simple, because they could have done a lot more. There are important parts about being a bit (or a lot) different from others, but it's never a fist down your throat situation blaming society or the system for one's personal predicament or treatment from others. The story is realistic and deeply meaningful, but without the overt intention of manipulating your feelings. In fact, when something relevant happens, here comes a narrator device to explain the neurological and hormonal mechanisms that led to infatuation or some specific response to a specific situation. And it's real science, not some colorful circles and arrows with dumbed down explanations from a happy voice. It's a feminist movie, without it being misandrist.
In short: I loved it! It's smart, poignant, well done, purposeful at all times. The story is probably more accessible to middle-aged people, but if a kid can grasp the concepts there, it would be a gold mine of education, as well. More people should see more films like this. Watch it!
The story: an Eastern European girl grows up from childhood and then through several marriages, slowly learning to understand and accept herself and others.
Honestly, I don't know why this isn't more famous and talked about. It's way better than Inside Out for example, in all categories except perhaps the technical ones like animation or sound. Highly recommended!