My group had a lot of fun with this one. Using the RIVAL option, we were able to create a pseudo-villianous-friend type character for them that has been a mainstay in the campaign. I'm not a huge fan of the new format for S8 modules, but this is well written enough that the dearth of information wasn't limiting.
My only issue with it, and seems to be the case with most of the S8 modules, is that the Adventure Hook is either not well defined, or vague enough for a DM to embellish it, and I (the DM) end up missing some crucial call to action to make the party want to do the thing.
[5 of 5 Stars!]