My partner and I recently did a playthrough with me at the controls and her making all the decisions, even play style. The third act of the base game fell pretty flat for both of us, and some of the forced decisions were very annoying.
spoiler
Killing our horse (named Nobu) was just fucking brutal. It led us to really dislike the poor, temporary horse we got. "FUCK YOU, NOT NOBU" was a common epithet
We immediately played the DLC and thought it was great, and the collectables/shrines were different enough it felt fresh. The story wasn't much to write home about, but the visuals were great. It was nice to have a new biome without it being one that doesn't exist in Tsuahima (looking at you, snow).