I played for about an hour or so and... meh.
The overseer finally makes an appearance and the first meeting is pretty underwhelming. I've seen a small handful of new locations added to the game and a few NPCs. Not many though. I would have expected to see more of an NPC presence to be honest.
One problem I have is that the new quests I've completed so far have all involved places I'd already discovered on the map, so it's just fast travel to the place, pick up the thing and then go back. One of the early quest lines also involves Rose again, and it's the same shit over and over again... Go here, get the thing, come back, go somewhere else, get another thing, go back, go to another place, get the thing, come back...
Not really excited so far.