The story is extremely dull and generic, it would be so simple for a child to make the story, it could be summarized as 'demon that turns others into demons', that was 90% of what is relevant to the story. In addition to the story being weak, it is completely rhythmless and boring.
The 'powers', if I can put it like that, are extremely basic and generic too, there are no incredible mechanics or anything like that, not at least until the end of these first episodes.
The graphics are excellent, one of the best I've ever seen.
The characters are horrible, that's the worst part, it's almost impossible to like a character in this first part, none of them seem like someone 'normal' that would exist, the only one who can identify a little is Nezuko, who has an internal conflict of being an Oni but not wanting to devour humans, and showing up to fights at the right time.
The only reason I don't give this anime such a low rating is that at the very end, after about 18 episodes, a light begins to shine that will be cool, Zenitsu, despite being a 'coward', shows an instinct to never give up, Inosuke seeing so many strong people realizes that he is extremely weak, and begins to have a training arc path, this anime is only worth it, if you are willing to spend hours watching the horrible beginning.
