This was enjoyable to run, and had good role-playing options for any group. Especially good was the group map handout, which gave clues to certain areas, but did not destroy any surprises. So the players could use some tactical decisions to try and work their way through a fairly deadly dungeon.
The sub text and descriptions were enough for each encounter and left room for the GM to add flavour. I adapted this to my Hoard of the Dragon Queen campaign due to further dealings with the Dragon Cult. It is a bit of a death trap dungeon for the unwary, but with the right tweaks, a very fun game to run.
My only query was about the reward at the end of the adventure which in the game was a Diamond Staff of relic proportions. I changed this to one of the goals in my campaign. I think the adventure lends itself well to some adaptation by the GM.
Most importantly the players enjoyed the variety of encounter types, and the need to use their combined group skills to survive.
[4 of 5 Stars!]