The first quarter of this didn't really grab me. It was adequate to pass the time while driving. Then it just got better and better.
And once we get past the parts where we're supposed to care that we don't know how elves reproduce, the pace really picks up - yeah, about the time the total badass chick half covered in scars steps on screen.
There are too many instances of passing time by having the current POV character fade in and out of consciousness. But if that's the trade I have to make for the wonderfully scattered little reveals of each characters' history, and the complex tapestry of bonds and betrayals so beautifully woven into a backdrop of blood and fire, I'll take it.