I'm of two minds about her character.
1. Yeah, the concept seems kind of Twilighty and shit, and she's pretty blatantly an attempt to give Ben a Mara Jade.
2. On the other hand her concept could have been really interesting if it goes into nature vs nuture with the concept of a Sith society that no one has any choice but to be born into and to do something halfway OT-ish with the concept of redemption.
The main problem with the execution is that it was incredibly inconsistent, to the point that it felt like two of the writers were actively fighting over what direction to take her character. Only Aaron Allston even tried to give a smarter, empathetic take on her character that wasn't mired in gendered bullshit. And that was for one book.
Also, HOLY SHIT CHRISTIE GOLDEN WHAT THE FUCK ARE YOU DOING WHAT THE FUCK WERE THINKING WHEN YOU WROTE ASCENSION. I gotta go dig up some of the reactions to "that" scene. You know what I'm talking about.