Giving this a 3 star rating.
It's good, but as many already has pointed out - it suffers from a lot of issues!
Making this a VN, removing sandbox mode that is, and chill down on certain clicks, such as the food thing, when you have to click to him to eat, I mean it was a little fun, I would even keep just that part but all others no. Like the ones where there is just a picture and no text, if we want to see the full image we have the "H" key, don't worry!
Do that and this game could easily go above 4 stars, for example if you piss off the nurse in the beginning you won't get a hand job from her later. Now I'm fairly sure that no one of you will want to replay all that clicking, and going here and there just to see that hand job but, if this was a VN with less clicking elements, you probably would or could take some time to explore. In general be pervy but nice seems to be the right way to play this game, but I could be wrong.
Not sure if you need a guide for this as some stated, I played this for a good long while now without it. Now take this with a grain of salt, but to me it gives off an aura of Foot Of the Mountains and Deluca Family. The spying from Foot Of the mountains and I guess the mystery and the family personalities goes kind of hand in hand with Deluca Family, I wouldn't say if those two made a baby, just gives off an aura from those games to me. So again take that with a grain!
The protagonist can be a bit annoying as well, this is just my preference but I never like it when the protagonists are vengeful, hateful, Anger issues (like raging teenagers) and uses the word bitch or slut, especially not in their own minds. I mean if someone pisses you off royally I would understand if the protagonist went out with a bitch word while being in frantic anger mode, but else no, it would have to be really fucking justified for me to approve.
He could also use a bit of balancing, as someone said as well, badass at one point and meek at other points. Sure he is probably a bit of a switch, even his personality. Almost worse worse than I am, and that's bad, trust me!
Of course renders and models and such are nice as hell, some really nice scenes and animations, one of the nicer ones I have seen even, top class! The "Landlady" is really hot, I don't mind the glowing eyes on her either, but that's just me, I can understand if some do.
Tl;dr: Good game, would be so much better if it was a VN - no sandbox, has its issues, and you don't want to replay this game to explore more options, be pervy and kind - is my advice.