I love this book. It has such a fantastic bibliography, including tons of stuff from scholarly journals, and stuff by Hugh Nibley. I was sold when I was reading the commentary for the Testimony of the Three Witnesses, and there was a quotation from Lucy Mack Smith, and then a link which took me to the Joseph Smith Papers website, and there was the quotation, handwritten in an old book. So awesome. I wish I would've bought the digital copy, though, because there are more resources and links available that way. I'm still just in 1 Nephi, but I am typing these notes like crazy into my online scripture study journal. Highly recommended.