Lae'zel was great. I had no strong opinions about her in EA but I ended up loving her story.
Ironically my chaotic good toon had better relations with the Lawful Evil Lae'zel then they did with the Chaotic Good Karlach. Lae'zel and I were at 100% approval while my arguments with Karlach about soul coins left kept me at something like 70% Karlach approval.
It meant I did things like kneeling before Vlaakith but that felt like being a polite guest. This is what you do in your culture and, out of respect to Lae'zel, I'll follow her example
I don't know if [spoilers]
if Orpheus is evil or, like the Githzeri, Lawful Neutral but starting a civil war inside an evil empire felt like a good thing to do.
Even if Orpheus is evil he's going to take Vlaakith's empire - which is focused on raiding and slaving - and reorient it towards finishing off the mind flayers. And that feels good.