Opinions will differ a lot on this game. For me, it was an amazing experience for what the game is: Netorase gone wrong / a forbidden kink turning into a nightmare for the MC, short and (un)sweet.
It's a "what if" scenario for the MC. What if another man was to hit on his wife? What if they were to have sex? How would she react? How would she feel, getting fucked by another man?
The scenario plays out over the period of five days (that is including the "After Story", a separate addition/sequel to this game), with the action escalating rather quickly. I prefer slow burn over a quick fall, however I didn't mind how fast the wife submitted in this game, purely because it's such an arousing "what if" scenario for me: What if there's a man so skilled at sex he could make a married wife submit to him in just five days? To the point of potentially divorcing her husband.
And that's really all there is to say. If the setting excites you, if the fantasy of a wife potentially falling for another guy in the span of five days of separation is thrilling to you, then you'll very likely love this game as much as I did. The art is good too, our FMC more than fulfills the role of a sexy wife, and the "shadow sex" scenes were enjoyable as well. The only downside is the lack of length/scenes, though the game's concept naturally restricts the possible length anyway.
Lastly, great job on the translation, thanks to Saikey for picking this up and delivering a passionate translation!