It’s… fine? It almost seems like it was supposed to be a revenge story, but he doesn’t care about his mistreatment at all, and when everyone has a change of heart after making his life miserable, he just… forgets? We see just how poorly he’s treated, his family hates him, he’s being bullied, and even his teachers want him gone, but it’s just sort of swept under the rug as soon as he gets his cheat-level power up.
I'm not too miffed about how much of a Gary Sue he becomes because the story dedicates itself to showing off just how “cool and talented” he was in the past and it’s not entirely ridiculous for him to suddenly be able to wield his new powers thanks to his experience, but there’s no charm in following a corporate levels of clean type of “perfect” character.
It’s just not for me though, it was just too bland to enjoy after a while, so I had to drop it.