The different paths all have unique dialog options, interactions, and renders, more than just the 1 or 2 renders/dialog changes most other VN game have where choices have no more impact past than the immediate.
Many paths have their own build up and reward making them uniquely entertaining and personally rewarding. Often more than 1 variation of it making even going down the same path substantially different biased on other seemingly inconsequential choices. Like having your own personal GM when you play.
Not for everyone, and most games will train you not to like it, but I like it with this particular game. I also like traveling all the paths, though the darker harem is my fav, but the faithful light versions have some really tender moments and close to a tie for me.