I love the opening it makes me nostalgic for .Hack//Sign, I have an appreciation for early 2000s music. The art style is a mix between .Hack, and Gunslinger Girl, with perhaps Gundam Wing. The animation is pretty good given what they're given to work with at the turn of the century. We are introduced to an interesting premise early on. The story is complex, yet easy to follow, and the events unfolding before us helps us understand the how the world is governed.