Pros:
-Very nice art in terms of the setting/feels ghibli-esque (Princess Mononoke vibe)
Cons:
-most predictable and generic story ever (grumpy guy meets girl, becomes friends with her, goes into rage mode and defeats bad guy, the end)
-lame characters
-Bunch of things went unexplained
Verdict: If you are in middle school you might enjoy this anime. If you like anime that has slightly more depth and isn't just a cheesy zombie fest then stay far far away.
