Nope, don't like her at all, I've actually gone as far as killing Wyll more than once (I'm so sorry Wyll!) because I wanted Karlach, but couldn't stomach the idea of Mizora lounging around my camp once Act III arrived. Blech. Don't get me wrong, the voice acting and character writing is quite good, but for roleplay reasons, Do. Not. Want.
It was the same with Malady, actually (since she's been brought up).