Advice to GMs: This campaign is one heck of an adventure. It works best if you read it all the way through several times before running it. It's rich with deep themes (war, family, displacement, avarice, etc) and a recurring cast of memorable NPCs. However, details important to the overarching plot are scattered throughout the twelve assignments, and sometimes you won't connect the dots until 100 pages later, so you should avoid running this campaign reading only one assignment at time.
You will also need to be familiar with the core rulebook, as the campaign makes good use of Hale locations and factions. It uses the majority of the creatures included in the core book, which is very cool.
There are some typos and editing errors, but the campaign is well-written overall. It's emotional, terrifying, and fraught with nuanced choices. The hooks that begin each assignment drop you right into the feel of the world. It is clear that Megan knows this setting inside and out and has a lot of love for the game. Megan also does a great job outlining actions and consequences, providing nuanced questions for characters, and suggesting alternative approaches to problems, but doing all of this with a light hand so that you as the GM can make your own decisions best suited to your table.
Whether you run it or not, this is a great read for a phenomenal Candela Obscura story!