First and foremost, do not expect an action movie, as this movie is more a drama with action scenes here and there.
As a disclaimer, I'd like to say this is my first time reviewing a movie/anime, and I watched the movie dubbed cuz I didn't want to bother myself with reading subtitles.
The setting is pretty straightforward, a futuristic post-apocalyptic world where resources are waning away, and society is split between 2 classes: the elite dictatorship-like rule (the politics of the society is not explored) and the "diggers" who as the name suggest, make sure the elite living in the city "Ecoban" are getting the resources they need.
The story shoots off explaining exactly that. A machine failure occurs, and the manager asks the officer to halt all work so the workers will not be harmed. As the officer (non-surprisingly) refuses, the manager threatens with a strike, following the officer kicking him and shooting him for his non-compliance.
Characters 6
The Characters are pretty basic. A caring though badass protagonist, the security force is brutal, and there's always that one kind-hearted officer among them. The diggers are the stereotypical "Ghetto" people, though they are not very explored. Workers, rioters and criminals, as one would expect from a ghetto full of downtrodden people.
The protagonist is pretty developed and his character is revealed pretty quickly, though the characters around him have development that pretty fits an hour long movie.
I wouldn't say they are too interesting, they are just there to keep the story going.
Story 7-8
As for the story itself, I'd give it a 6-ish. It's a basic story of rebellion against an elite. What I very liked about it is the pacing and how they build it to come to the climax. For an action movie (which it is not) the pacing is slow, but for a drama it is fitting very well, which is why I give it a 7-8. This is where the characters' purpose comes in, as they themselves are not all amazing, but they give the story a good "flow"
Graphics 10
Nothing to say. Great application of CGI with animation, this movie is beautiful.
Soundtrack 9
The sound design of the movie is great. The scenes aren't packed with ambient sounds to compliment the setting, but keep it natural. The music is employed very well to deliver the mood shown in the scenes.
In the English dub some of the voice-acting is pretty mediocre. The protagonists is well depicted, as some other characters, but overall it is not that great.
Overall it's a 9 for me regarding soundtrack.
To sum it all up, it is a great movie in my eyes if you want a chill afternoon or before bed movie. I loved it and do recommend to try it out.
It's an overall 8.5 for me.