For all its faults, the story of XV ultimately paid off for me and I was genuinely moved.
I think it helps that the game depicts the main cast so well during the run. There are little details to be found in terms of the friends interacting almost everywhere. Be it devising a combat plan, helping each other out, pictures showing them taking poses, random dialouges etc. The game also often nails nonverbal communication between the guys. And all of this also occurs outside the context of storymissions. Furthermore, while they are definitely archetypes, I don't think the guys are one-dimensional at all.