Well, affection raiser simulators aren't my thing (i.e. the focus is more on repetitive actions to gain some kind of points to advance which feels more disruptive and grindy than just progressing).
The fact that the models are unoriginal/repurposed (at least two of them, I happened to randomly find the characters two models are based on while browsing elsewhere) doesn't make it any better.
Also, there might be people who say it could be either case, but I hate it when the gender is blatantly obvious. I mean when you can see feminine characteristics or features like non-flat breasts and an overall feminine figure/silhouette, yet the story presents a character as if it could only be the other option until it is revealed as a surprise to everyone (or at least the protagonist), except the reader/viewer/player already knew from the beginning or at least long before the revelation. At least in this case it doesn't take as long to resolve as with other stories, but it still bothers me.
All that is still besides how sluggish (if that is the right word) the animations feel, so it also doesn't feel as rewarding to grind affection. Plus I don't know how it is for others but the game also feels unoptimized when moving around, like it lags to open the menu.
That's probably everything I have to say about this game or at least think is worth mentioning.