I have just finished playing Shadows of Amn for the second time with this mod installed. I would like to congratulate all concerned, as I believe they captured not only the personality of Nalia, but also the other romanceable females perfectly.
My first playthrough involved Nalia, Viconia, Jaheira and Aerie, whilst my second involved only Viconia and Nalia, (I dumped Jaheira asap). The additional dialogue in the second game between Nalia and Viconia was sparkling. and has tickled my curiosity regarding just having Nalia and Aerie, (or indeed Jaheira), in the party.
Therefore this mod has excellent replayability potential.
This is a superb mod, and I only have one complaint, i.e. in the maze beneath Spellhold, once you have the crystal and the hand, the main character staggers and a party member expresses concern. I preferred Nalia's concern in the original game, (from memory, "we will have to be extra gentle with you") to the concern in the mod.
This is nitpicking, however, and I sincerely hope that you will find time to add TOB content.
Once again, well done to everybody involved in the creation of this excellent mod.