I've seen YouTube vids of a couple of times she's been on evening talk shows (Conan, etc.) and she's very attractive, but more important, she's energetic, bright, engaging. Not at all just a pretty airhead.
Tom Brady is an idiot for letting her go.
OTOH, there's always the saying, "She may look great, but somewhere there's a guy who is sick to death of her sh*t." So ya never know for sure.
I think that most marriages that seem bad have a lot going on in the background that we know nothing about.