The major problem with the anime doesn't really hit until around episode... 25 or so, when the plot goes in a completely different direction than the Manga. The manga has such an excellent plot, and it's told quite well, but the anime goes and does its own thing.
On the other hand, the animation is always top-notch, and the coreography is great, no matter what episodes you watch. I also personally enjoy the overt Moe blob influence on certain parts of the animation, because it's used just enough to emphasize certain characters styles, personalities, etc.
Edit: Note that if you read the manga first, and then watch the anime, you will be really, really dissapointed. I didn't so I was fine with both, for the most part.