I'd read it for the fantasy even without the love story; I'd read it for the love story even without the fantasy.
I'm a bit too bouncy to avoid spoilers, and anyway it needs a second read-through before it'll sit tight in my head enough to stay put. I bought it the other night on errands and then completely evaded reading it until I knew I'd have a good solid chance to sit down with it. I managed to put it down long enough to drive from the plasma place to the store, read it while wheeling around the cart getting groceries, put it down again to drive home, and just now finished it.