For me this anime has been really enjoyable.
The story is fresh, it is about the hell and how it is divided, and you follow the second in command of the Japanese version of Hell.
It's story is made full of references to real life legends, urban myths and actual people and contains a lot of jokes as well.
The art style was very nice to see and despite the fact that i dont like to watch most anime more then once this was definitely an anime i could watch multiple times due to its diversity.
The music is fun to listen to and sing along to and overall i really like this anime.
I would recommend this to anyone who wants a anime which is fresh in its content and able to learn about some real life facts from Japanese Hell.
It's one Hell of an anime ;)