The first hour or so of the campaign has real tight gameplay. Action, roleplay, riddles, humor, and lots of details. Very good. Very, very good IMO. I'm playing a rogue who aspires to be a shadowdancer.
My first impression on the builder side of thing is not yeah, but hell the bleepin-bleep yeah!!!!
Worth more than $30 bucks, but I am practically a NWN fanboy I love the game so much, so I might be a little biased.
I would tell more, but I want to get back to the toolset!
I will add-this.. It looks like treasure is actually placed logically. Food in the kitchen instead of a sword, ect.