Cleared the game, didn't 100% the gallery though. Here are my thoughts.
It's the first time I've seen a skill tree that fits the story and character arc. It's nice to know her corruption was always there, and we just nudged her that way. Also, the gameplay for a simple CG collector is quite tight. I was invested in min-maxing my days and resources and looking forward to unlocking her new skills. Cleared the game with 8 days left, so I assume the game is quite forgiving, even with bad endings returning you to the menu and throwing you a discovery meter halfway in the game just so you have another responsibility to juggle.
On the bad side, what is the point of the bottle/magic points? Padding, I tell'ya. There is literally no other reason why you should do a cardio session inside that thing every day instead of simply going straight to her head and unlocking the skills with dpt points instead. It's mildly annoying.
The scenes do suffer from the usual rapey vibe until the very end. The game teases us with her costume changing once, but that is it; she won't be walking pantless/braless. Ever. There is no point in weekdays, and the rain event unlocks a single scene and makes her wet, a waste of dev time and resources.
Overall, this game is way above the average porn game, but the game itself is nothing noteworthy. I would recommend it for the solid experience it provides, but I will never touch it again.