The story's well planned coz they don't have funny stuffs going on(e.g something like this might happen *), everything is related ( I mean every action they make actually effects the story leter and that means if you were to. . . like read the 6th volume of the manga without seeing the movie/anime/previous volumes of the manga, you'll not be able to get the story very well. . .).
So that means good chracters that are VERY VERY logical. . . The visual's style's a little different from others. . . (err... I guess coz it's the eye. . .thing, ya know! You can know what they're feeling!).
The audio suites the story thats kinda dark, I think. . . but I like the story coz its GOOD. . .
*= Refer to Training Wheels, Updated Tuesdays for more details (coz I dun wanna make thing look messy)