What I love about Carrion Crown is that it's the first time I've ever really needed all of my skill points and where the group really needs all of the Knowledge bases covered. My Inquisitor has quite a few out-of-class Knowledge skills now just to keep things going.
Also, boy, can I say that I'm soooo not keen on exploring Harrowstone? After so much time spent preparing, I'm more than a little worried about what's going to go 'boo' in the dark.
My character, a Dhampyr Inquisitor (previously paladin until she started getting assistance from her captive evil rogue / fighter prisoner in her backstory) is also getting the wiggins. She's usually all tough and stern (think cowboy) but the dark prison kind of reminds her of her vampiric father's ruined mansion and she has old issues with ghosts - issues she can ignore on a day to day basis, but not when it's coupled with a place of such obvious necromantic energies.