The animation looks crazy, I always rely on that first because for me it's a good thermometer to know if there can be quality in anime. But the story looks interesting, revenge, the oni; it never goes wrong, or at least it rarely does.
I'll keep an eye out for this, it looks very quality honestly!
Yeah, the animation indeed looks promising. I hope they'll really adapt well those cool fight scenes from the manga. I somehow agree with you that a nicely animated anime is sure more enjoyable to watch (and the art style is usually the one that first lures me, lol). Hopefully this quality will not waver until the end of its first season.