Beautiful hand-drawn art, extensive and engaging writing, massively branching story tree, high replayability. If you join the discord, there's plenty of memes, theories, and discussions on everything from connections to the Divine Comedy to background plant analysis (no I'm not kidding, every instance of ivy appearing in the art has been thoroughly catalogued). People are enthusiastic about this game and enjoy interacting with the characters, since the relationship system (which is not explicitly a romance system, though you can romance a few characters in later chapters if you so choose) is so complex and rewarding to experiment with. Anyway, I recommend it, even for those not typically into the visual novel genre (I wasn't before I played this game, and I still don't think I would play many VN games). Is that enough parentheticals to make my point?