I like the Auri comparison best; don't see much of the Firefly references certainly NOT Mal for Grimm.  I'm REALLY not happy reading the first book of an upcoming series this soon.  I'm not patient and really wonder as to how long until next book comes out.  I started reading DF around book 11/12 so I had a good backlog to go through.  No such luck here.  Reading through these spoiler topics help better understand (probably not the right word) the book I just finished.