this is going to a bit short, but i will try to give you a good idea of the feal the manga gives.
the characters are a bit, well, cookie cutter. just standard characters you see everyware, but that inst a bad thing.
the story feals a little rushed, this could have easily gone on 2 maby 3 volumes if they took there time, evolved the characters a bit, went into more back story. realy it just feels kine they character were put there and than new story, new story, end.
granted it is a good manga, it suffers from being rushed. and its a very standard
story too, nothing setting it apart form others. but its still beter than average.
DO NOT go into this expecting a litary master peice, and try to go into it like you would a good b scifi or monster movie, it may not be the best, but its a decent way to kill some time.