Here's an interesting review from Iron Tower Studio's Vault Dweller (Age of Decadence project leader) which might help you make a choice about the game:

http://www.rpgcodex.net/article.php?id=192

I agree it wasn't as compelling or narratively as well written as Mask of the Betrayer, but I enjoyed the possible choices within the story generally a little more than Storm of Zehir.