I like the game, in principle.
For the VN parts, using Unity is re-inventing the wheel, but it works decently for the most part. For the non-VN parts, it's probably an improvement, but ... more on that later.
I like the visuals, typical DAZ models, but presented in a distinct artstyle that is maintained throughout the game. No animations, but I don't miss them, personally. Overall a strong suit of the game.
The story is nothing to write home about, a decent corruption story, not very original, but also not too cliche and there's only a small amount of plot details/developments that made me roll my eyes. Slow paced, but once the ball gets rolling ,it gets rolling for real. And that's a promise the game fulfills already now, in 0.18, not a distant promise like in some other games.
My criticisim in this area is that dialogues and descriptive text are overly verbose and often not very interesting. I think they're quite good when the juicy bits roll around, but during the buildup, it often feels the game rambles on and on and on about things that could be described with a much smaller amount of words.
Overall, still rather a positive than a negative.
Why only three stars then?
Everyone knows the LotR quote about how evil cannot create, only corrupt - and in the same vein, grind cannot improve a bad game to be better, only bring down good games, and that's what happens here as well.
The grind gameplay loop is essentially only mindless clicking, which is not interesting nor really challenging. There is a very mild management-game-vector, but it comes at a tremendous cost, namely you clicking hundreds of times without noticeable return on investment.
To be fair, N.T.R.'s grind is fairly mild, but still mostly superficial.
If all grind was removed, the game would be better of for it (imo), but on the other hand, it'd be fairly short considering the time it's been in development.
Is N.T.R. still worth playing? I would say so, but just play in endless mode, and don't fret about particulars (especially your debt and your / the opponents restaurant prestige).
A final content advisory, some people feel a game is NTR when a female character admits having had a boyfriend years ago, but when it comes to ACTUAL NTR, there's hardly any in this game (yet). It's mostly cheating, so don't sweat if NTR isn't your thing (personally, I'm neutral on the topic).