"Very Thorough"
Yes as per the other comments the narrator is very monotone, but personally I was able to get past that once getting into the meat of the book about 2 hours in. From there on I was continually surprised at how carefully and thoroughly the subjects where explained. I have read a number of books on emptiness but this is definitely the most extensive guide to actual contemplation of the subject. To the point that yes I will be also buying the book to use as a study guide, which in itself is somewhat impractical from an audio book format.