I wouldn't recommend this show, but I wouldn't discourage people from watching it. Its a pretty good show, but not really the kind of thing I like to watch.
Story - This is mainly about a girl in a war-torn future who joined the military to learn how to play the trumpet. There isn't really a whole lot of plot, and the story is centered around character-based drama. If you find likable characters interacting with each other and no overarching story compelling, then there's a lot you can get out of this show. If you're more into interesting and complex plots, I'd recommend looking elsewhere.
Characters - All of the main characters get some kind of development and backstory (there's like 5 of them). They all have clear motivations and personalities. Its nice to see them interacting and be cute.
Animation - The art is pretty good. The blend of cultures and unique locations really gives this story a nice visual style. It paints a bleak yet interesting future. The character designs are nice, while bordering on generic, and character movements are the stock "stiff anime movement" that is common in the medium. This isn't a bad thing, but a lot of other animes that I'd rather be watching then this have far smoother animation.
Audio - The voice acting and music are pretty good.
