The game isn't perfect--far from it. But now you've heard from guys encouraging you to try it and you've heard from others who discourage you from playing it. Ultimately, like most of the rest of us, spending a few minutes to check it out is the only way to know for sure.
Personally, I play all the routes and within the routes you have other, minor, branches. For the majority of games I play that is how I approach things.
Please keep in mind the fundamental difference that many of us have with those that hate NTR games. First person vs third person. I, and others like me, play third person. It's like reading Lord of the Rings. We observe the story, see how it unfolds. I want to see how the story progresses. But in a first person player (most NTR haters are in that category), they become the MC. They don't like it when they are threatened and feel better when they are rewarded or get their way. But they also become more emotionally attached to the story and tend to have more visceral responses. 3rd person folks, because they are not attached to the character, don't have the emotional responses and don't understand all the anger about NTR games.
If people understood the difference, there would be less hostility on this site.