my main issue with the game aside from the fact that it feels like they didn't leave enough room gameplay/narrative wise for two more episodes (at least) i felt some of the dungeons were just tedious to get through. Like hojo's lab and a few others is what keeps me from replaying it.
it would be tough to play through a trilogy of these if they are all similar to this one
For me there's only two areas that get tedious:
Hojo's Lab and revisiting the Sector 5 slums.
They had an entire Tifa chapter on deck too

(when we see her leaving sector 7 in INTERMISSION, they have an unfinished chapter that got cut out of the main game).
I don't mind that the entirety of Midgar wasn't playable, but would've loved if for instance Tifa's chapter took us to like Sector 4 or something. And Hojo's lab was just way too long it does make sense considering what we know of him but cut it in half and give us more Shinra building piff.
Still one of my goat games,I replay it all of the time with my Gotterdammerungs on deck...but I do avoid those shyts as well.