The changes made to Wyll are welcome. Still in middle of Act 1, but he comes across less as a boastful liar pretending to be a hero and more as a flawed, if still boastful and unwise, man trying to do his best for others. He seems to care a more about the well-being of those he claims to save this time around.
Shart has a few more quirks, which is neat. Lae’zel is Lae’zel.
Karlach seems to have a pretty thin personality so far. What’s there is good, but there’s just not much of it. Then again, she hasn’t fully opened up yet.
Would you mind elaborating a bit on the Wyll changes? Specifically things relating to his alignment.
He still has a big of a swagger for sure, but there is as reason for his wanting to do a certain task early on in the game, and if you have him when you meet said 'task', it becomes clear very quickly that he was deceived, and he freely admits it. As for his unique situation (being a warlock and all), he has no regrets for making that pact, and it's clear he did it to save someone/many someones. It seems obvious he put his own soul on the line to help others, and that causes him to suffer.
Small things - his introduction is a bit cooler, but no real personality change - he opens up at camp a decent amount. More than most of the early origin companions actually, it's a nice change not having just "shut up, we need to get healed" or "I'm a private person, don't ask me about that". Ironically, he feels much more fleshed out than the others at the start. - at the point i'm at (About to start the journey to moonrise towers), I would definitely consider him a good companion.
It is a bit odd having two good companions be connected to the hells though lol. Larian's sense of irony I suppose.