This show is nothing but fun, it knows what it is and doesn't try to be anything but.
The character design is phenomenal, the English voice actors are phenomenal, the action is phenomenal, and the music is excellent. The setting and world is perfectly concise and clear and optimized to deliver the story.
I thoroughly enjoyed every minute of this show from beginning to end, it never left me feeling bored and I was totally emotionally involved in almost every person in the cast. This like Zoids Zero Century or a restaurant with a menu containing 2 or 3 items only is a perfect show that knows exactly what it wants to do and doesn't nothing but that perfectly.