It's cute, and I think it has good character developement and art style.
I can agree with the art style, I liked Foster's Home, but I guess I cant argue with your opinion that the characters are well-developed. And well, it IS a show for little girls so it'd HAVE to be cute to be appealing. But there's some other shows like this im sure.
Edit: By can't argue, I mean I wont argue because it's your opinion, not that I think it's well developed :U