Yeah I didn't mind that part, but the dungeon is so long and repetitive. Get keycard, open door, repeat, I've done that in games dozens of times. And there are only 3-4 total enemy types that are not very interesting (except that big gargoyle thing). The best thing about that section is Ardyn taunting you the whole way.

My 2 year old actually liked that section because he kept telling me which doors to go to. 'No, not that one. Green one!'