Excellent use of teasing and lack of insight to stimulate the cuck/NTR angst. Characters are a bit cartoony in their dialogue and actions, but it's not too over-the-top (outside of the Russian brothers, that is). Art style is simple yet effective, and is so much better than the multitude of pre-rendered, ripped-asset garbage that is so common in this genre, where all the women store half of their bodyweight in their tits, and even the "cuck" has a 14" dick.
There doesn't seem to be much player agency, as there are a lot of choices that lead to the same location/result, though it may change the way the MC reacts to the situation. That said, I'd rather have less agency and more substantial updates like this game than every update having maybe 1-2 scenes that interest my current route.
All in all, it's the best NTR-specific game I've played maybe ever, with it outclassing the Atelier Sakura games if only due to better pacing and more explicit scenes. I think it's only 2nd to the Eva Kiss games in terms of VNs out now that have good cucking/cheating/corruption.