Great graphics & sound; cool-looking characters, without the sometimes typical for anime abnormally silly faces, and a sweet plot (to save what's left of humanity). Nevertheless, the anime has it's bad points, too - the dialogs are cheesy and banal; the same attack used on the same opponent deals completely different damage every time; the second dimension story-line somewhat conflicts with the events in the first part of the anime. As a whole it is awesome and I definitely recommend it, but it should have ended with episode 21.