I've only done one epilogue thus far, having popped over to it after finishing her original route. Miya's.
I adore how it points out a good chunk of the main character's thought process in the original route, and that it honestly depicted a lot of the difficulties dating someone with her condition and living situation when you, yourself are just an idiot college kid, but I wish that it could have ended some other way. Even if it was still a painful one.
Edit: Only just now saw all of the other comments about her route lol
I'll add that of all the routes in the game, Miyah's version of the MC and how it deconstructs his personality is some of the best character writing I've ever seen, and that's not hyperbole.
Sitting in his perspective, having his shallowness thrust in your face, feeling the gears turn in his head as he thrusts himself into something that will make everything worse but just lets him FEEL ANYTHING for a moment. Being cowardly over wanting to leave, being bitter about feeling like a hostage, thus he forces the decision for himself, making it impossible for him not to go through with it. It's all so, so very well done.