Princess Principal is fun popcorn material. I liked the changing mystery throughout. It faltered with the ending leaving it open for a season 2 that I unfortunately don't think it will ever get. Individual episodic cases were okay. Wish they had added together more to make a connected climax. Decent characters, except the ninja girl, she was annoying and more of a caricature than the others. The sound was best part. Very good OST, Kajira proved she could do jazz and only fully YUKI KAJIRAed twice. Watched the opening everyt ime. Ending is adorable, whichseems to be par for the course with 3Hz.