I got to playtest this with the author before it was published here at the DMG.
In the player's seat, it was great fun! Roleplaying, combat and exploration were all big parts in this adventure and they were all done great. The difficulty was just right and all the NPC interactions were done well.
Reading the PDF - it's probably one of the best adventure modules I've ever read. I like the author put in notes on how to make the campaign humorous or serious. There is a good bit of info in the adventure and he made it easy to either follow the guide exactly or it can be easily tailored (no pun intedned) to fit into your own homebrew universe. I look forward to playing and/or running the next part of the adventure!