I hope they fix the quest because it's my favorite so far -- I love the art, the changing of the swap. Larian really gets the creepy bits of old European fairy tales.
For a good party it starts with self interest but becomes a rescue quest. She claims to have an artifact that can cure. You are skeptical but there is something strange about her, you find that there a someone in need of rescuing, when you get further in you find more and more victims.
My favourite part too and character. She's so fun and her lair, the swamp, minions, masks, etc. So well done in my opinion. Curious to see her sisters in future if we cross her.