I would personally very much like to emphasize on the fact that your enjoyment of this series will be heavily downplayed if you do not even slightly comprehend Asian folklore and cultural. Not just Japan, but China and a little of India too. The fact that this comic takes place in Japanese Hell should be a good enough indicator.
This manga is written in a gag style sequence similar to Gintama, if only less plot and less emphasis on arcs. The art itself is heavily influenced by old Japanese art, due to the Eguchi Natsumi having studied Japanese art in her University. In other words, if you come into here expecting the usual flare of Anime/Manga art of 201X era, then you would be disappointed.
As the focus is towards more to the gag nature, little actual fleshed out story and character development are present. That is not to say it has none; Hoozuki does eventually make more acquaintances and have more sadistic comical adventure as the series goes on. So everyone has different interpretation of their character development. Your millage may vary!
I would recommend this manga to anyone who found Saint Young Men or games like Devil Summoner interesting. If you are of an Asian descent or are interested in Asia Cultural and Mytho, give this series a spin.
