Me too...about 2/3 the way through. It's an odd one for the series, you can certainly tell it's only half the entire book. I can't decide whether I like his method of splitting the monster opus he created or not yet. Probably won't know until I get through the next book.
I just started it (about 100 pages in) so I don't have much to go on yet. I wish I hadn't gotten so involved in a series that isn't complete yet. I hate waiting for the next book!