The plot / writing feels like it was put together by a 13 year old, or maybe an AI. it's almost interesting, and almost makes sense, but doesn't. Things just sort of "happen", and they don't really make sense and aren't really explained. Character motivations are unclear. Also, the gameplay is shit.
The world they created is super compelling, which seems to always be the case with Final Fantasy games. I just wish they could make an actually good game to go with their top tier world building and art direction.
What gets me with Kingdom Hearts is that it's the same characters every time. I haven't played since Birth By Sleep since the Nothing/Heartless/ whoever all feel so interchangeable
At the very least FF has new faces and places