Very poor. This anime has filler episodes even though it is very short. When you do eventually get an idea of the plot, it isn't anything new or exciting. Rather boring and predictable actually.
O.K. at best. Noticeably lacking in fight scenes. The backgrounds and character designs sre ok, but considering this is an action anime the lack of quality is telling. It means that there is no real reason to watch this at all.
The opening and closing themes in this anime are actually quite good, whereas the music throughout the show is very boring. The voice actors do an O.K. job
Annoying, just annoying. They play out stereotypes in a monotonus manner. Nothing exciting happens character wise. It is quite hard to think of anything good about the characters.
Exceptionally mediocre. Do not get sucked in. I haven't watced the film, but I have read that it is good. This is not. I hope that it is a lot worse than the film or every review I have read is lying