She definitely sounds more and more confident as the interview goes on. At the beginning she sounds bored and reluctant, and her voice took me by surprise. She sounds 20 years older than her age.
But for the most part she seems believable. She is consistent and her words flow, compared to the halting way Watts speaks. Everything is pretty consistent with what we know. Chris told others about the separation, he deleted his FB account to hide that he was lying, he told her Shanann was bossy and wouldn't let him do anything. Everything to convince her that the marriage was over.
She gave several examples of conversations and specified that they would find the evidence in the text and phone records. She admitted that they would find raunchy pictures and texts and was afraid they would be on the news, and she was right.
Interesting how she was assured they weren't interested in that and they only wanted to look at evidence pertaining to what Chris said about his wife and kids but then released it all publically anyway. Imo