Looks like this is better than the other Yuusha series i watched.
I'm gonna make this review short as i'm not good at expressing a lot yet.
Results
Story 8/10: The story is par with the novel (there will always be some changes), few fanservices (which is better) and character development is there.
Art 8/10: Character designs are not bad since i know the designer is also in charge for Inou battle wa nichijou-kei no naka de which was made last year. Background design is decent.
Sound 8/10: BGM, OP, ED was good not to annoying, nano.RIPE made the ED anyway. Voice Actors did really well especially the voices of Emi and Maou.
Character 8/10: I just love Maou-sama enthusiasm at the fast-food restaurant.
Enjoyment 10/10: I have to say, i enjoyed watching this show since my friend recommended me to watch before watching a new series which may have similar plot of this series.
Overall: 8/10