Boring
Being a fan of society building games such as Civ and Anno, I was quite excited about this, but after upgrading the buildings a few times and expanding the camp, and none of it really making any difference in terms of evolving the game, I got bored. Simply put: nothing ever happens. It's a beautiful game, but there's hardly any... game. You wait around for hours or days for upgrades to finish and then: nothing. Buildings look pretty much the same, do the same thing. Also, why is Eden not a tropical paradise?