Cliche much but i guess it's alright.
It's mildly cliche. Go figure, anime, plus a few silly moments. Drug humor, excessive cursing to make the characters more...edgy? Sprite action sequences with metal/hardcore. erm, nothing to special all in all.
Oh and the whole text thing where the world is explained... Seriously? Come on it had to last for that long of a time? All in all it's just an "okay."