First of all, I have to say that the plot is cliche just like its universe, even after saying that I can admit that despite that I find it quite entertaining. Although the world is cliche, it is well worked out and explained the whole matter of demons and their powers.
Our protagonist, Denji, is any person who lived his whole life in misery and misfortune without being able to access the basic needs of any other person such as a bed, decent daily food, education, his motivation, which moves our director character to all along her sleeve are little things like a good meal or feeling a girl's lips for the first time; Simple character without complexes of anger or revenge who just wants to live a normal life like any other.
What stands out from his work is that despite showing a cliché plot he manages to entertain his audience, it has many well-drawn action scenes with a lot of violence and blood in between, his three main characters Denji, Power (a hyperactive demon girl who despises humans but hates vegetables even more) and Hayakawa (our typical Sasuke on duty) are very nice and fun; and seeing how their relationship evolves leaves you trapped like any good slice of life out there.
In short, it is not a work that stands out too much, it does not have anything specific that makes it stand out from the rest, but it manages to entertain a lot with everything that the mangaka has to show, action, various demons with their characteristic powers, gore and cool character designs (the protagonist looks so edgy transformed).