I happen to love Pathfinder: Kingmaker quite strongly, yet it has its own plethora of bugs. In case of this DLC it currently may not work - or, worse yet, it may just stop to work in the middle of play-through. (I had it stop work in Chapter 2, when no amount of problem-solving would get 'DLC required' line to vanish.) I strongly advise against buying it before it will get patched properly.
