I don't play NTR or NTS games, but I gave this one a shot because it looked promising and interesting, and I like to expand my horizons every so often.
I have to say that Vanilla is an extremely appealing character. All the girls are great, really. I usually strongly dislike AI art, but this has to be the best use of AI art I've ever seen. The story buildup is really nice. I also think the chats are really well done and sound quite natural.
My major complaint, and this is more of a personal thing, is that I just can't relate to the main character. Every time his tiny penis is mentioned, or his inability to last more than a few seconds, or the way he completely misses the most obvious signs that Vanilla is being manipulated or doing suspicious things...it just pulls me out of the whole thing. It would be great to introduce some kind of customization around the MC and his reactions, so we can affect the story.
I also wish that there was some kind of way we can influence the story at all. It essentially runs on rails. In my first playthrough, I did not subscribe to anyone on OF, yet the story assumed I did, so even the choices I did make were railroaded into something else.
(My secret wish is to have a route that prevents Vanilla from doing all this or guides her to stop after she starts, but I recognize that is like asking for steak in a candy shop, so I am not criticizing here—just voicing my silly opinion.)
Regardless, I like the game and look forward to more, however it ends up concluding. Thank you for making it; you gave me many hours of enjoyment already.