Semantics; By Drow standards she isn't all to bad. imo But what I'm saying is, because what had happened to her, Her character could have a more drastic or not change in her World view and person views etc... She doesn't have to be Goody Boy too-shoes like Wyll but stepping in that direction at least, via choices etc...
Oh, hell yes. She’s much better than most drows lol. She's a special case due to her circumstances, but I’d argue that she's already an outlier because of how incredibly loyal to you she can be. I doubt most, if any, drow nobility would want to have you as a consort and take your last name to replace Baenre. Granted she hates her mother but that's still a great amount of devotion.
I don’t think she’s capable of 'redemption', at least not in the timespan that they give us. She speaks of wanting to reshape the world and is certain that she won’t change her mind when you try to persuade her, and for good reason too. Unlike Astarion, she has had free will for a long time (200+ years) and has a better understanding of why she sees the world as it is (so she’s stubborn af). It makes sense that her change isn’t any more drastic than it is, but I like to think she could be guided to a better direction - eventually.
