Hi Ornyx, I read your review and I agree with it for the most part, but I think you are mistaken on a few points and hope you can edit from your review accordingly: 

1- You mention that "its hard to tell if girls in this reality are as strong as on the old one because he one punches them sometimes". MC is trained in martial arts, so he can beat most girls who aren't trained on this world. he lost when he was outnumbered or the girl in question had super powers.

2- Yes, mc was able to make it to the fight with the final bosses, but that was because he had a team that supported him and an organization that locked away all criminals he used powers on or killed them. Also at the beginning of the story he loses all the upgrades and powers he had stolen before.

I agree with your review for the most part except for those two issues. Thank you for taking the time to review--I'm always excited to get constructive criticism.