I had the distinct pleasure to DM this many times at GameHole Con where it premiered. It is really nice to see the author really took the feedback from myself and dozens of players to further enhance the module!

I have seen this module become 2 massive slog fights that the PC's barely survived or be completed in under 2 hours due to excellent RP, lucky nat 20's, and excellently applied Dimension Door spells + portable hole. That group surprised me and I can eleborate if anyone is curious.

Overall it is a great module and lays the foundation for the rest of the trilogy nicely. (I got to read those as well and buckle up folks!)

Changing the Crystal Skull to be more generally useful to living PC's and adding the whisper skull as a common item were excellent ideas.

Finally, allowing the main armour reward to be druid friendly has made at least 3 players extremely happy!

So I ran this module last night for my party (MoP Human Battlemaster Fighter, Warforged Grave Cleric, Warforged Abjurer, and High Elf Evoker), and it was interesting. A few notes:

I like how the module noted various spells to circumvent the pyroduct, but overlooked the most obvious way to circumvent it -- Soarsleds. Even outside of Sharn, it is 60 ft per round for 10 minutes. Plenty of time to coast over. XD

Also, the final encounter was fairly trivial for my party since one of the wizards had Sunbeam. So it took them maybe two or so rounds... Really traversing the terrain and avoiding the magma was more of a thing than the vampire was.

Incidentally, I am curious (as are my players) about the info in the war room. No doubt this will unfold quite intriguingly in the next few modules, and hopefully they will not have to kill those Undying Paladins to protect the Oracle...