This was probably the most complex fantasy world building I have ever read. A futuristic planet plagued by seismic activity is controlled by people with the gift to move earth, yet they are reviled and revered in equal measure (kinda like X-Men). It took me awhile to get my bearings and immerse myself in it, but I'm glad I put in the work for the payoff of masterful narrative plotting. Jemisin also infuses the novel with much to think about on themes that affect us in the real world: motherhood, slavery, feminism, LGBTQ, and the environment Now that I understand this world, I think the subsequent books will go down a little easier. Though, I'm guessing she's the kind of author that will always make you work for the payoff and it may be awhile before I'm ready - definitely not summer reading material...
(For more reviews and bookish musings: http://www.bornandreadinchicago.com/)