This anime is just the good amount of happiness, brain dead comedy, action, and drama. So if you're looking for a time killer, or a background anime to watch without paying much attention, or anime where you don't want to think much, this one is for you.
This is a pretty mid comedy fantasy slice of life anime. If you've seen one of these type of anime before, for example: Irruma kun, dragon maid, etc., then those are better for this type of anime and this anime will pale in comparison, and I would recommend watching those first, but it's up to you. BUT this anime still have some of it spotlight.
The one thing this anime got better than other average anime in the same genre/demographics is the gimmick really. The gimmick of having the retired hero with the reborn demonlord is very interesting and looks fun to follow through. Though I must say that this gimmick does pale as time goes on and left behind by the story, although some plot points will still refresh the gimmick and keep it interesting.
The fanservice is plenty though, perhaps too much in my opinion, but it's part of the comedy so its ok and it doesn't take away the plot too much, and its plot doesn't rely on the fanservice unlike others anime airing this season (yes Im talking to you my tiny senpai).
Overall, the production quality, while is average for the genre, it's enough for this anime and it doesn't bother that much, cuz the main selling point of this anime is really the comedy and character interactions.
In conclusion, this is toward the top for average comedy fantasy slice of life anime and is better than most average anime in this, but IS still average at the end of the day.
