Post-Apocahantas Dystopian Scifi complete with subfactions of natives accepting new normal, rejecting new normal or dying in droves due to either infighting or the diseases the colonists brought with them. The colonizers are not well fleshed out but they are real guilty about all this. Every part of the setting seems truncated, perhaps so that you can flesh it out, yourselves. I would love to see more details on the setting in future sourcebooks. Right now, the game has enough detail to get you started, if you're creative.
The system is pretty light but with enough substance to support it's mechanics and character creation is marvelously easy. Jumping in and understanding it would hardly be an effort for experienced roleplayers and new players wouldn't have to spend months learning fine details and esoteric mechanics.