The first interaction you have with Vizeran is one where he openly complains about people (read: Drizzt, PC, and a hoard of demons) being on his lawn.

(Tangentially, I am curious how the Zhents knew that Vizeran is alive when even Jarlaxle was unaware.)

After Vizeran gives you his weird shopping list to get rid of Baphomet (very much including Gromph's diary grimoire) follows the funniest Neverwinter quest ever.

Firstly, Drizzt 'acting' injured and the PC disguising as a drow priestess. The former just has hand-cuffs and is pretending to limp along and look sad.

The moment you do reach the place Gromph's diary is held, Jarlaxle immediately see's past the disguise spell and Drizzt's acting.

This whole quote:

"Listen, I can give you Gromph Baenre's grimoire (I never really was his biggest fan), but only on one condition."

The MOMENT demons start attacking, Jarlaxle disappears. Straight up leaves. It's made even funnier by the fact that Drizzt is there, trying to ask him for help during the fight.

Also, also. There is a little sidequest in which you save a halfling character that has popped up before. And you free him, while disguised as a drow priestess, in front of a drider and several guards.

Credit where credit is due, Vizeran was pretty cunning and though the story did eventually hint at him being the villain, it was usually because of other NPCs skepticism, and not anything that Vizeran himself said.

I used to have screenshots of this, but when Vizeran asks you if you are in leagues with Menzo, there is a response only available if your PC is a drow.

Depending on the gender, he replies in two different ways. If male, he sympathizes with your dislike of Drow society ('I know how us males are treated, blah blah blah) and appreciates you for being honest. If female, Vizeran's reply is more surprised.

Oh of course, post bossfight (he doesn't parttake) he tries to kill you all and gets counterspelled. Get betrayed.

He isn't quite dead though. There is a cutscene in which Vizeran talks to the Elemental Evil cult leaders. I sometimes forget that he is a member of that cult.

There are a lot more moments that I enjoy from the adventure.

Minsc trying to get Boo and Guen to be friends, much to Drizzt's dismay.

Makos just being more of a loose canon.

The post party celebration scene. 'There isn't enough ale in the world to make Drizzt or Makos dance.'

In the first level, Drizzt and Bruenor's friendly banter.

Lans Thuliaga's whole side-quest. Doing a lot of extra exploration gets him a happy ending.

That one halfling whose name I cannot remember. Man, life was not kind to him. Family slaughtered by vampires then captured by drow. But hey, you get to help him.