I thought her personality was fairly obvious in the later chapters. In chapter 4, I believe it was, we learn more about her from Maechen after the 1000 Words performance. There there's the song itself, which expresses her feelings and regrets about what happened between her and Shuyin.
Just from that it's easy to tell what kind of person she was.
She was a popular singer from Zanarkand that gave up everything to fight for the city, knowing that it was futile and she would most likely die.
And she was so forgiving of Shuyin, even after he attempted to destroy Spira.
That may not seem like much, but I think it says alot.
But I guess there is still plently we don't know about her. So, she has the whole mysterious vibe-thing going for her, since we're left to assume a lot. That always works.![]()