I liked RDG, I gave it an 8. The best thing in my opinion: the art. It is just beautiful, plenty of details. The story was great too, but a little rushed I guess. The first 2-3 episodes are the worst, after that the anime grows. The characters are okay, especially when they reach Tokyo. To me, Izumiko is just too plain of a character. Too shy, too young. And I have to admit that she will be like for the entire show. But the rest of the characters are great, especially the brothers and the "enemies". It is a beautiful and green anime, with a dark vibe. Ireally recommend to watch it, at least until ep 6. Then you will be able to know if you like it or not.