Just finished it, and I'm a bit disappointed. Don't get me wrong, the story was interesting, but the glossary talked about those cool new Allomancers and Ferrings while in the book there were no Leechers, Nicrobursts, Gnats, Oracles, and barely any Ferrings.
Also, I've read in another thread before finishing the book about Miles surviving a beheading and I thought I read a spoiler, but no such scene was in the book. So where is it from?