I'll admit, they totally underutilized her. She could have been a quadruple agent, but they wrote her as just a red herring. A very temporary one no less.
But then again, I'm still catching up on the older New Avengers/Thunderbolts stuff, and am still not sure if she really does anything there either. So far she's basically around to confuse Spider-Man's brain.
Design-wise, she carries herself well though, kind of like a G.I. Joe Baroness or something. Kudos for finding someone that looks exactly like she does in the comics.