I have a shitload to do at work right now, but I managed to squeeze in a couple of hours of this yesterday.
It is a very good location-remix with a bunch of good kills and it utilizes the map in new ways which makes it feel fairly fresh.
There are a few methods that feel a bit too easy like getting the priest disguise as well as a few that are just the same method but you wait a bit longer to get a different kill (same as the spoiler one). Both of these could've been done better, but I understand that it's probably a time/resource issue.
I think this is the best one of the bonus missions.