They need to be careful about how they deal with Piper, she's on the verge of becoming very unlikable. There's a difference between having a complex character (i.e. Don Draper or Walter White) and having a lead that people don't want to watch because of how unlikable they are.
I think she's supposed to be unlikeable. She's a stuck up, self entitled bitch. I don't feel like that last word is an insult on her gender, she just is. And being isolated and forced to face herself in prison is making her realize this more and more.