This is one great anime. It has action, some (in my opinion) Sci-Fi related things. Now, on with details.
Dub-This is the part that most people hate about anime. They all have bad dubs. This one, suprisingly, was good. It was off in some parts, put it was a pretty good dub. The dub in some scenes even matched the sub word for word!
Animation-I'm not really a big fan of modern animation. I prefer the old style animation, namely Rurouni Kenshin's animation(it's lighter and the people don't (in my opinion) look like wax figures). But, I came to like the animation on this particular one though. It is dark and like I said, the people to me look like wax figures, but in this one, they look great.
Music-The music is GREAT. I love the opening theme song and the action in it(I downloaded it and I can't get the part that goes "Kawaita jikan no" out of my head). I don't care much for the ending song, but it's still pretty good.
Overall Rating-4 out of 5. I gave it a four because of the dub. You'll have to excuse my picky personality if you disagree.