rawmilk905: Yes, I have only heard good things about it, but I have not been able to bring myself to try it. I remember liking Tyrants of the Moonsea pretty well.
That is a module for making and testing character builds. I am not sure what you mean by premium content.
SirEyeball: http://www.gog.com/forum/neverwinter_nights_series/limited_edition_content_for_nwn2 sorry I meant limited not premium content
To my knowledge the presale and limited edition bonuses were rolled into an official patch. As the GOG version is patched we should already have them. Could some of you test this on a clean GOG installation? I have the bonuses in my game. They are probably not as exciting as you might hope.
To test if they are present in your game, start the official campaign (not an expansion campaign, the original one) with a new character and look at the character sheet (press c to bring this up,) under the feats tab you should see Merchant's Friend and Blessed of Waukeen. These will only appear on new characters starting the first campaign, unless they are entered with a cheat. Starting a character with one of the other campaigns or any other module will not grant either feat. Except for the spell-like ability associated with Blessed of Waukeen, the feats have no use in other modules anyway.
Merchant's Friend (unlocked by the presale bonus) gives a general 10% discount in stores and opens up otherwise hidden stores in the original campaign. Blessed of Waukeen (unlocked by the limited edition bonus) is a similar feat which opens the same stores (I'm not sure if it gives the 10% discount as my characters have always had both feats) and also grants a spell like ability to temporarily add +1 to saving throws.