Overall the plot is simple with character good design and character development with the gimmick that the main character doesn’t want to be the hero anymore.
The only issue I have, is the ending. I feel like the idea that all he had to do was just turn it off with his ego was just stupid. Like in the 1000 years he had this issue he never tried that. It also just ruins the last episodes cause it was all for nothing. I understand why this was done because you got to pay bill somehow.
This is just a preference not an issue but I don’t like with anime have little kids. The dog girl is really annoying in both Japanese and English. I just wish she didn’t talk.
If you have time to kill or just want to have something in the background, watch this dub. I’d say that it doesn’t get good till like episode 5, when you learn who he really is.