Like the previous adventure, this one had a great story and was fairly easy to follow. A few meta bits of travel get lost some (like moving from the sewers to inside the Gibbering Mouther), but otherwise it was smooth sailing. My players loved the concept of the Census Watch and we easily could have spent a lot of time there.
Make use of those Winged Boots! I forgot to have Anfred fly up after his first attack and...well...I had to do some fudging for some HP (which I generally hate doing) otherwise that last fight would have been super anti-climactic. As for the resolution, I've never seen players so morally conflicted as to whether they revive one NPC or another. That was a pleasure to watch, hahah!
Again, the material in the appendix and suppliment were amazing and the art really did a lot to bring the story to life. Excellent job all around!
My only suggestion, and an echo of my players, "More Raan!!!" ;)
[5 of 5 Stars!]