I'm not saying she doesn't do well in the roll....but the roll itself doesn't exactly require a lot of "acting chops". You pretty much just need to look good in a tank top and tight jeans to pull that part off.
Go check out the movie
How to Lose Friends & Alienate People (2008) I've heard numerous insider publications state that she's nearly identical to the character she plays in that movie in real life. Entertaining initially, but that crap only flies for a very, very short time.
She's exactly the girl they had in mind when they invented that saying...
"
No matter how hot you thing she is, somewhere right now there's a guy out there who's sick of putting up with her ****!"