After playing all the campaigns but scarlet keys, this is one of my favorite if not THE favority cycle.
The theme is awesome and a welcome change to the other settings.
At the beginning you will get your butt kicked, but once you figure out the important things and you fiddle around with your deck, it becomes SO much fun and is incredibly rewarding. Other cycles like Edge of the Earth were also awesome but way too easy for my taste. THIS offers a proper challenge imho.
That being said you need other cycles to make this work. With just the core set and this as your first expansion, you probably will have a bad time. At least when you play as a group.