this one actually does have expressions in its sex scenes as an option, making it a bit better than the majority of the... "genre" i guess you'd call it?
they're definitely a lot worse than any porn game with actual effort. imo, the only benefits they have over some things are two things:
1. it feels a bit easier to self-insert yourself into the situation when you have some level of control over it, versus a CG gallery
2. "gameplay that basically does not exist" is definitely better than gameplay which is so awful that it's a slog to get to the porn. i'm fine with porn games that have longer stretches between porn sections but have solid gameplay (The Last Sovereign, for instance, has a great story and solid gameplay, although imo the actual porn scenes are kinda meh just from the artstyle), but there's definitely many where the gameplay is actively the worst
EDIT: this is not the latest version! the latest version of the game has the expressions-during-sex-scene option for most (or maybe all) of the NPCs, with the most recent being the "Yarakashi Researcher" (no idea who the fuck that is) and the "Ogre in Prison" (DO know who that is, and this lacks the expression mode for that)