OK, so I've played all paths and unlocked all achievements. Overall, I give this a 7/10*
Asterisk because some elements of this VN are next level. Like clearly 10/10, no notes. I thought the writing was generally quite good (even if I thought some of the colloquial language came of as unnatural/inaccurate), and the characters were mostly quite well defined. And that's the difference between a good adult VN and idle fappery.
On the other hand, there were a few elements I didn't care for........and I think I will just leave it at that.
So by and large, congrats and huzzah to the Dev for a job well done. And an extra special pat on the back/toot of the horn for myself for offering constructive feedback on an 8-year old game.