Pros - it is free, and perhaps some of the encounters can be pulled out of it and reused if you want something with an elemental cult flavor.
Cons - this is a mystery with only 1 suspect! The maps are also pretty low-quality.
Really well-written and well-organized adventure. The layout is fantastic. The story and creatures included are original and creative. This is one of the best short adventures for 5e out there.
A lot of nicely-written adventures in this collection. I've read most of them and I've run "Terror at Triboar" and my group had a lot of fun with that one. I like how that one is organized - giving the DM several ideas of little encounters to throw into the adventure as they see fit. I also like how it lets the players go about their investigation around town however they wish to do so.
This is a fantastic product. It is everything that I wish Storm King's Thunder would have been. It is a hexcrawl sandbox campaign that gives just the right amount of detail to each location and significant encounter so that they can be run easily. Random encounters are very creative and well-thought-out to fit with the campaign world. Probably the best 5e Sandbox style hexcrawl game that I've seen.
I ran this one last night for a friend who played a level 3 wizard. It was a lot of fun! Nice concept. Well-designed as a 1 character + 1 GM one-shot game. The maps look good for VTT play. I like the vertical dungeon concept this adventure has. It has some stuff that is pretty clearly "fluff" at the start of the adventure - some basic points about a setting and a starting NPC to give your character info - it was easy to reskin these aspects to fit it into the setting I was already using and use an NPC that was already in the game world to sub in for the one presented in this module.
This adventure scenario is so basic and cliche it made me cringe just to read through it. I guess if you are a first time DM and your players are absolutely new to RPGs and you wanted something extremely basic, maybe it would be useful for you.