New Old Judge Book Review?

I likely will be buying the new Old Judge book soon, but would like to hear some thoughts from fellow collectors before then.

Does the book provide significant new insights/information regarding rarities in the set?

How in depth does it go into the N173 and N175 sets? Are there pics of every N173 and N175 as well?

Clearly this is the most extensive publication on Old Judge cards and related sets to date, but was there anything you were hoping would be in the book but wasn't included?

Any additional thoughts/reviews of the book would be appreciated!