This series is bad but in a strange way. The art is incredibly solid, but doesn't suit the comedy style of this manga. The story seems to take itself somewhat seriously, but the comedic elements seem to get in the way of that too. The artist has very little flexibility in his ability to draw, he draws well, but he can't draw comedic scenes for shit. I can only reference Fullmetal Alchemist as a series that understands how to draw a comedic scene, a standard scene, and an action scene, and you don't draw them all the same.
In contrast, the writing of the characters is awful universally. Some characters seem to be knuckle dragging retarded levels of stupid, yet they're no treated like absolute idiots, they're treated like regular people by other people. The B Rank adventure is the most prominent example of this. He isn't prideful, he's retarded. Other characters seem to be retarded based on the setting. Apparently, this village is approximately three days walking from a Demon owned military foretress, and a stonethrow from the mine, yet they've lived this way for a while? This would be analogous to just casually living in No Man's Land during WWI. If there's no fighting going on, then why are all the demons acting as if constant war has been going on?
And before anyone tries to hand wave this with "Dude ease up, it's comedy, lmao" that doesn't excuse it from being stupid. Konosuba is a comedy with a similar setting and it doesn't suffer from any of these issues at all. I really hope this artist finds a different author to work with because the current one is really holding him back.