I did like to run this as the setting and enemies were very nice but some of the setup and numbers were kind of awkward. May be some spoilers ahead.
The first fight expects you to throw something like 6-8 enemies at the players when on a 3 square wide bridge. A movement nightmare that makes it so half the feats and abilities of the enemies just cant work. Then all the enemies have maybe some of the worst ACs for an NPC of their level that I've seen.
Then they expect the players to unmask a gorgon. This was rough to run RP wise and the ensuing fight doesn't last long since all the other enemy NPCs are caged and arrive to the fight late.
Then the fight with the leader of the mantis group was a joke in my opinion. This amazing rouge is expected to fight alone? all of his strength is in his sneak attack and other tricks which you kind of cant do if its a 6V1. He gets 6 way stomped like the bug he is.
The final "encounter" has lost its luster since all the shadow lodge info has come out. Its a big reveal that has already been revealed to all the players. I think it can still shock the players but I skipped setting it up and merely explained it to the players box text style.
If I ran this again I would definitely fix some of these encounters. Bump the ACs a few points and throw in a few more goons. My group was balanced and they walked through this thing, so Im sure a little bump could be handled.