I thought Karliah was one of the more interesting NPCs in the game.
To each his own I guess. I am still put off by the whole
"Give your soul and be a Nightingale to defeat Mercer"
Me: Is that really the only way? He's that strong?
Her:Yes
Me: Fine, I agree.
Her: Here, put these on. You wont get your powers til after he's dead.
Me: Then why did I sell my soul?
Her: Uh, good luck? *Troll Face*