Pretty good module with a great (if gross) magic item. Possibly my favorite aspect is just the scope of things you encounter - there's a little bit of everything, from the racists of hillsfar to the weirdest denizen of the underdark, right down to demons and fire giants.
I picked this up because I was planning to run Herald of the Moon and saw that there was a tie-in mentioned there regarding this module - turns out the tie-in is so minor as to not really matter, especially since the NPC that ties the two together is featured prominently in multiple modules. Not really a complaint, but if you're reading this thinking the same thing, it's definitely not a prerequisite.
[4 of 5 Stars!]