Illogicalzen discusses Kakumeiki Valvrave:
Guilty Geass: Attack of the Vampire Mecha (Aka, Valvrave The Liberator) is a truly wonderful series, one that plays with the giant mecha genre in a way that is both entertaining and self-aware. I have never been a massive fan of mecha anime, with the Gundam franchise, and a few other seem far too serious minded for my taste. There is something truly brilliant, but also rather ludicrous about giant robots fighting each other with flashy weapons and special moves, unfortunately, by taking themselves seriously, the comedy that could come from such things is often lost. This doesn’t mean that I dislike mecha, just that I tend to gravitate towards the more light hearted side of the genre, where giant robot series like Gravion and Aquarion reign supreme. What Guilty Geass: Attack of the Vampire Mecha does is take the more serious elements of global politics and super weapons and present them in a far more self-aware form that is serious enough to be entertaining.