Still enjoying this series -- and grateful I started it when there were so many books already out -- but I am starting to wish that the structure was not quite so broad. It would be nice if each book had something to distinguish it a little more from the others, some trick of symbols or theme. (If there is one, it's too subtle and I missed it.) But it feels more like I've been reading one super-long book this whole time.
Also, I feel obligated to point out that this has an absolute cliffhanger of an ending. Not bad -- but a little frustrating when the next book is not yet available for me to get at the local library.