I ran it twice and really enjoyed it. There are some very nice story elements and I dig a "dungeon" that is genuinely interesting to explore. We had many laughs and some exciting moments as well.
I'm really pleased that it was fun to run, and clearly fun to play. I also enjoyed both tables, I just felt that the story structure was amiss.
Maybe it is just the failed author in me, over-thinking things.
I loved the Seven Stones.
I loved initial "obsidian floor", and the whole entry scenario.
I thought the BBEG was a fun fight...but I hated that it was THAT particular creature, didn't sit well with me.
I didn't like that the adventure simultaneously wanted you to respect the Temple...and yet expected(?) you to loot it at the same time.
The histories were great....but didn't seem to link to specific story objectives, at least not to begin with.
I perhaps would have grokked it more if "Seven Stones" had sent us there to 'loot' the place.
"Rescue X, Y, and Z from the Temple for me, and in return I will give you the information you are looking for. Beware, the place has fallen to darkness, yet some of the original wards may still remain a threat."