I've bought both romance + ntr route. I played a bit of both so I can talk about my experience.
Shadovv is right in all of his criticism except that it's "Absolute trash."
The romance route is a very basic "game" where you enter a dungeon, and decide when to exit. That's your only "action" as a player. It's basically an idle game until you proceed with your next event. They even called this the Event Points that you collect to proceed to the next scene.
The NTR route is more classic NTR with scenes and branches. Except the way they handle branches (basically which man you offer Rui's pussy to with a pregnancy meter) which is slightly more confusing than usual since they add a "Love Meter". Essentially if you click choices that fill up love, you can maintain choice for you (the weak husband) to pick who gets to cum inside her. If you intentionally let love fall to 0, you get the default villain ending.
The visuals are amazing. The woman is fantastically beautiful. Wonderful drawings of her backs, her breasts are perfectly big (not big and disgusting), great butt, nice facial expressions.
Like Shadovv saids, the whole "map" gameplay idea doesn't really bring much to the table. It's flavor to support a visual novel game. Plot is standard Japanese stuff. Nothing spectacular. Classic "blackmail" where woman is a mindless, submissive, traditional Japanese woman who zero agency (not the modern, professional lady who don't get marry and wants her own career and casual sex type that Japan shuns). It's mediocre at best.
HOWEVER
I suggest people to buy the game, at least the NTR route. We as English speakers do NOT get translated AliceSoft games. If you're not going to support this one, you really think they'll fork out more money to Kagura to translate the rest of their games, or their future games? It's only 15 dollars.