So I got it in today, watched the first episode, and am VERY pleased. The animation is nice. The backround art is AMAZING. The character designs are very nice, and the voices are very very nice.

Animation wise, the only thing that manages to tie it is the second Cardcaptor Sakura movie. Of course, I've know series where the animation of a series goes from acceptable to 'quality', so hopefully Kamichu! will keep it up through all of its 16 episode.