It didn’t quite make it to five because it was REALLY ridiculous and hard to suspend my belief at times. I also felt like there were just a little too many interruptions by the narrators. 

Nevertheless I finished 2/3 in one sitting and stayed up 2 hours past my bedtime (which is 3 am at the moment anyway :D) so that must mean that I was sucked into this book. I just love the writing style (except the a bit too many interruptions) so much. 

The showdown at the end with the carriage felt quite annoying to me though.