Whenever a character gets mad, the emotional change seems very awkward. Also, the dialogue when people are mad is a bit, for lack of a better word, cheesy, and sometimes people act totally out of character. Tirion's wife, for instance, gets extremely mad in a matter of seconds and her actions after she gets mad seem uncharacteristic of her. Because of the length of the novel, I think maybe she wasn't fleshed out enough as a character to understand her. I feel guilty writing so many complaints about the book.
Nothing is terribly wrong with the story, and it is entertaining as a casual read.
I think my main qualm is just that Metzen's literary endeavor didn't hold with Blizzard's legacy of perfection.