Overall, this adventure stands out as one of the more interesting adventures in the DDAL07 group. It is, however, incomplete. The scenario takes advantage of being written for a high level party with some fascinating locations and creatures, but is written in such a way that it leaves way more up to the DM to figure out than normal for DDAL adventures. The vague instructions of how to handle the lair actions would have been very well served with more suggestions, and missing statblocks don't help. I'd highly recommend reading the Mordenkainen's Tome of Foes entry on fiends, as well as reviewing some of the monster manual creatures whose statblocks were left out, to fully prepare for this adventure. With a bit more preparation required than normal for AL moduless, however, it can shine as one of the most interesting parts of the series.