There are almost 400 pages in this thread, so I have no idea if anyone has commented on this, but I will do so anyway.
I find it really a great, GREAT detail that there are so, so many dialogue choices. I know that maybe most of them don't matter much and are simply to develop the converstions. But this helps so much more to get you into character. In this case, the MC.
Practically in every conversation you have options to answer in different ways. Which I love. You can be nice and romantic with the girls, you can be more lustful, you can be more neutral and even be a bit of a jerk.
Like I said, I know it seems rather banal and unimportant, but I feel it helps you empathize with the MC and mold their personality to your preference.
One example that comes to mind is when Rae is taking a bath:
You can be attentive and affectionate with her while having sex and be considerate of what she likes. Or, you can be more lustful/primal and fuck her mercilessly and even tell her that she should thank you for fucking her. Or a combination of both, if you want.
And like that, there are many, many other examples. In absolutely every scene in the game. Not many games allow you this and I really appreciate this.