I started with Pandora, and in the end had to shelf her for Liloith until my opponent felt he was able to cope with 'Dora's style.
I think Fetid Strumpet said it all, really, but I'll throw in my 2c.
She relies on very much exploiting the WP, by just stacking dual after duel on the opponents models, and raising the price of failing even one of those duels. The rest of her crew add to these duels, but 'Dora can quite capably hold down the entire enemy crew by herself.
If you want to try to not slip into the power ditch and start playing in a 'negative' way for your opponent, you can make it difficult for yourself by bringing her Avatar (generally looked at as a step-down), Minions that don't really fit (Teddy/Baby Kade combo is good, although there could be some play with the Terrifying rules there), or particularly difficult schemes for yourself (Anything requiring mass killing, for example).