None of this is to say that the anime is not worth watching if you have not read the manga, or even if you have, everyone is different and you might wildly enjoy it. It has a genuine plot that has a clear goal and approaches it with a fairly consistent pace; it is rather all the little details which detract from this anime for me. The manga's art is more enjoyable since it is not poorly animated, its plot is executed more grandiosely, which is the main difference besides art that bothers me, and the manga allows you to imagine how the characters act a little more, and while sometimes an anime exceeds my imagination, as I am not very creative, it did not in this instance.
I think the easiest place to start is the art. If you have watched a lot of Gonzo, then you probably have found that although maybe not always superb, they have had a hand in such creations as Gankutsuou or Last Exile with superb animation that moves very naturally (except in the terrible mech scene), and even in less refined instances like Full Metal Panic! or Gantz is still quite acceptable typically. In this anime it moves very awkwardly and left me rendered uncomfortable the entire anime. It is not the worst art ever, and I am giving it a three not so much for the actual drawing style, which is probably around fairly typical, but for the emphatically terrible way in which movement occurs.
The voice acting is stellar. In regard to music, I usually try to rate it this way: if it does not detract from the anime, then I am not upset (if it detracts I will rate it a 1 or 2 by default). In this case, it is certainly no Cowboy Bebop or anything, but it never terribly detracts, distracts, or annoys.
I want to give them the benefit of the doubt and say that the plot changes they made were for the amount of time they had allotted to do with the amount of episodes, but I found almost every plot change to be for the worse, which is why I penalized the story so highly. It is much more exciting and constantly 'epic' in the manga. I will not spoil them here, but if you have read and not watched or vice versa, then you will easily notice them.
