It feels boring most of the time and the MC doesn't use his power in a way that ANYONE in the real world would- if it were me, I would've gone around copying the abilities of everyone in the city and then just gone from city to city stealthily copying skills from everyone (MC copies an ability to become a shadow, literally no reason he can't do this) OR I'd go after everyone who had a specific single ability, say, earth manipulation and by compounding the abilities, become a literal Earth God with the ability to manipulate everything to do with dirt. Another point that bugs me is that the MC has access to a list of every known arcana in the world through his computer watch but doesn't do anything about going after the good ones- it's not until chapter 75 (again despite having the knowledge at his hand already) that he seems to learn about a guy's ability that lets his mana/arcana pool (and strength/defense) go up by 100x but he doesn't seem to be really that bothered about it. Thinking of this missed opportunity, there's another one where he fights an assassin with literal invisibility as his ability, he fights him and cripples the assassin but for some reason DOESN'T TAKE HIS ABILITY? Instead he kills him- MC had the guy crippled! Even if you have a cooldown, lock him in a room somewhere for a month! You have EARTH MANIPULATION. YOU CAN MAKE UNDERGROUND ROOMS.