He's super fun to play as (since you can get easy injuries while travelling the map). However, he is close to a simple M1 killer when it comes to downing survivors which makes him fun to loop as a survivor. His lobby music is insane, his chase music fits perfectly with his anime vibe (with the discordant piano notes and the electric guitar), he has cool voice lines and really shows he's in pain with each screams that goes with his lunges (which is also a great audio clue for when he's charging, much like blight). It's also the same voice actor from the original anime! He has a very good design and comes from the best timeline in the anime... I mean what do you want more? I think getting a Tokyo Ghoul and a FNAF collab in the same year is legendary and any complains shall be punished with the death sentence at this point.
Plus this ain't the first anime collab we've had, incase you forgot there is the Castlevania chapter, as well as the Junji Ito and AOT collections. Stop being surprised at some point. Behaviour has implemented animes in DBD for a while now, and it should be acknowledged by everyone since this gives space for more exotic and supernatural possibilities.

Finally, this is probably the first time that I'm about to say this after 6 years of playing your game but-
Good job behaviour !

However in his current state he is super op like there is nothing you can do against him