I think she's really cool and everything, but...
Her "American" accent is so distracting to me sometimes. She cannot fake it to save her life.
She's been playing Americans for almost 3 years and the accent hasn't gotten any better. I hear her slip almost every time she speaks and it takes me out of the show for a moment.
Nothing against her. I like her as an actress, it's just a shame that she can't pull off a convincing American accent like most Australian actors can.