I'm really surprised that this is the dev's first game. The writing is excellent, the story and characters are interesting, the murder mystery keeps me engaged and the subtle humour fits in well without drifting off into the comedy genre.
One thing that really sticks out is the care the dev puts into emotional displays. The characters visibly display emotions, often in subtle ways, which makes them come alive and appear to be more realistic than what you see in most other projects despite the rendering engine not being the most modern piece of technology. The way the dev often uses automatically playing sequences of several renders to display the character's reactions to events and each other really makes the scenes come alive. I'll take this over generic high-resolution renders using standard expressions every time.
Sex scenes are hot, and if you are into D/s play, polyamory and netori you will get your fair share. This is, however, not just a porn game. It really is an erotic novel that puts the story first.
As for choices, this game is more of a kinetic novel that allows you to opt out of the various character's story lines and to chose if you want to risk knocking up your partners, which is totally fine by me. Each choice comes with the neccessary info if a character's story line will include fetishes like sissification, which is highly commendable.
If you like interesting stories with a strong and dominant trans/futa MC that offer more than just sex scenes for a quick wank than this game is for you.
Edit: Typos