I'm not complaining about the Mary Sue thing, don't get me wrong. I get that he's a self insert. I just mean he's got no history besides being an immigrant from another country with no family to speak of besides a grandfather who owned a hotel. Despite this, every nubile woman he meets finds him super interesting and attractive and wants to have sex with him. He might as well be Isabella Swan from Twilight.
However, as I said before, I'm not complaining about it. I'm not even marking you down for it. People don't play Half-Life because Gordon Freeman is super interesting.
It's the encounters your protagonist has with interesting, complex people, in a dystopian society on the brink of a civil rights revolution that makes this game interesting.
As for my gripe about sex scenes, maybe I'm just bothered that there's not enough variation in positions in repeatable sex scenes, although I like that anal is optional. Not kink shaming, but massive turn off for me.
All in all, easily the best Ren'Py visual novel I've ever played.