A good start that starts to meander and get dragged on by politics. Spoilers below.

Storywise, the MC has the ability to gain abilities of anything he eats, and his rpg world makes the applications of his chimera ant-like powers very interesting. I liked watching him fight weaker monsters, eat them, then use their powers to beat and eat bigger monsters. Along the way he levels up, helps expand his tribe and strengthen his allies, and he develops weapons from monster carcasses like a turtle shell shield as well as gain weapons from other uses. The various job classes and combination abilities he has are pretty cool too, and his growth to eventually challenge the legendary heroes/dungeons and become a force to be reckoned with is pretty cool, as well as his later ability to do various summons.

The problems is that after about 125 days or so, he starts focusing on certain missions for the princess and setting up shops in the cities. This is hugely boring and also fairly meainingless, because he has the abilities luck/golden rule/overcharge/etc that allow him to rip off merchants and always win overall at gambling. In addition, his power level means he can challenge numerous dungeons and got a ton of money from his loot. In fact, with his power, hes able to kill the entire city just about if he wanted. So theres little reason to spend so many days talking about the shops and the chump change he gets from it. Its a large detour from the start when he focused on getting abilities and becoming stronger, which was much more interesting. The level up and rank up after 100 levels was interesting too, though I did feel they leveled up really quick compared to the power level of other monsters/humans.

Another issue was the politics involed with the princess and the kingdom. It was handled almost as badly as in Mushiku Tensei. It was largely boring, waiting around day after day when he had a near infinite (several thousand) undead soldiers and golems that he could spawn and yet he wouldnt attack with them. This drawn out battle was extremely boring.

Theres also many days spent just drinking or lounging around his base. While the base is interesting, it started to get dull because he would gloss over the details and focus on the elven wine/other alcohols.

The characters arent all that developed and a bit stereotyped, but it didnt bother me much as Im not a character guy. I still found the MC more likeable than, say, Rudeus.

I still enjoyed reading this for the rpg and battles/abilities/dungeons and other rpg aspects, but I didnt care for a lot of the above. I also found his recruitment and usage of his enslave ability a bit too convenient for some troops, like Avenger. The auto activations of psalms and his storyline didnt make much sense and I thought things were awfully convenient falling into place too. I think Idve preferred if he left his village and traveled the world rather than set up shitty bases in towns that he could easily conquer. Anyway, overall a solid read for the rpg world its in but gets much worse after he starts to venture to the human world and embroiled in unnecessary boring politics. The fire volcano dungeon was semi interesting, but him fighting the dragon solo was a bit much.