A thoroughly interesting mod, with a very fun variety of encounters and an interesting storyline to go along with it. There is opportunity to roleplay, puzzle solve and of course combat. The temporary tranformation introduced mid mod also adds a fun variety and sets the scene for some life altering choices for the players at the end of the mod. A few things that might need tweaking: there is one encounter that has the potential to suck an immense amount of time - if time constrained, adjust sensibly. Also, the final boss isnt overly challenging for a halfway decent party. After GMing it (and seeing the party manage it fine) I played it once as a 3 person party and that was certainly challenging, but obviously we were a fairly weak group. Consider scaling - there are resources on the internet suggesting creature substitutions / scaling. Finally, there is one puzzle where the room is slowly filling with lava. I have witnessed even people with the solution struggle to figure out what the trick is so make sure you really take the time to understand it as a GM, and be prepared to just punish the players for not solving and move on (I made my table take lava damage before the walls are caved in and they can go).
[5 of 5 Stars!]