Its being compared to Awakening of the Goddess, comic by the same artist a few years ago
biggest difference is that in the comic the husband stayed home and can only see whats happening through webcall, there was an air of mystery too it and how the husband is completely unaware until the very end.
In the game however, the husband is with the wife and its essentially a ch hunter game. You play mini-games and if you fail, the wife gets fucked. So there's no rape (technically), mystery, or any sneaking around. The husband (or the player) willfully allows Claire to get fucked and its implied that the husband is standing outside watching it happen and yet has no dialogue regarding the sex at all
That said its not completely terrible once you let go of the hype and expectations the original comic would have brought you. Art is still amazing, the VA cast did great work, its probably one of the better CG hunter games I've played (it has nothing on Ayako's Scramble tho, NOTHING), all it needs is to better reflect the way the content is delivered. Only thing holding it back is NTRMAN's own writing style