Look, this is an amazing setting, and this book is a great showcase of that. I was on the fence about the 5th edition kickstarter, but then I saw that this primer was free and I grabbed it. I was instantly hooked. This is the setting for which I am most anticipating running a game, and it is because of the way that they have set the world up to be compelling.
Not only is this setting about "Conan Meets Chthulhu", but it is also about playing in an age before recorded history when magic is real, but fading, and monsters stalk the Earth for another few heartbeats of history. Glaciers slowly encroach upon humanity like a sword of damocles and the world is equally at risk of falling into barbarity, depravity, or insanity.
Are you bad ass enough to carve a piece of Thule for yourselves, save the day, or just earn enough treasure to ride out the wintery apocalypse? Play the game and find out.
Seriously, this introduction to the setting should be enough to make you want to buy one of their campaign books.
5 out of 5.