What is the general consensus for Bianca here?
Personally?
I HATE HER. I think she was too perfect (best smith in the world, best archer, super pretty, more snarky than Varric which came off as obnoxious) but despite that, my main issue with her is that she came off as manipulative. She can't let poor Varric go, and comes running back to him when she has an issue that him and his powerful friends can help with. I think she uses him (whether it's a sub concious thing or not) and then leaves him again to feel shitty that things can never be. I get that all of this was sad and they wanted to be together BUT the way it was handled made me really dislike her.
My reaction when we first meet her:
And then it turns out she did all this herself and wanted Varric to clean up her stupid and pointless mess...

I mean, if Anders and Hawke can still be together after DA2, then Varric and Bianca should have been able to run away together or get back together. It's all too tragic and I had no sympathy. I just felt sorry for Varric to be tied down like that. It also made me feel even worse for the Varricmancers... She needs to let him go, because I don't think he can without her doing so. I was a total dick to her in-game, too. Here comes some pretty, super brilliant dwarf with an obvious past and Varric looks like he's super troubled by it all... giving him more issues. NOPE.