I'd like to see something else involving Moiya's husband. I don't necessarily need a happy ending, but being able to release him (say, after the Irenicus battle, while exploring the remainder of the Asylum) would be nice. Journal entry could simply say "I hope he makes it home, but it's now out of my hands." As it is, his appearance and subsequent disappearance feels incomplete. Also, I don't know if this concerns you or not, but wouldn't the maze spell he casts when he sees you mean an automatic game over for solo characters?
I enjoyed the Nazarial fight. Different, but not too difficult. I'm curious to see what will happen when I exit the Underdark.
The Vithal negotiation is excellent. I find it especially gratifying that he notices if you pickpocketed him before dividing the spoils. I also appreciate the rod of absorption coming with more than a single charge now.
One thing I'm scratching my head over is Simyaz's group of Githyanki. I'm assuming it's QP's AI improvements that has smartened them up (nothing else is installed that claims to do so), but am puzzled as to why they are able to power word: sleep my entire party into submission. As far as I know, that spell shouldn't affect any of them at all, as none of my party members have less than 20 hitpoints. (Hell, only Kelsey has less than 60.) And I'm still ticked that I can't just give them their damned sword and leave in peace. (At least that idiot Saemon will finally stay dead, thanks to Oversight and a critical hit by Minsc.)