There are three standout reasons why I think this publication is great.
Firstly, learning Lunar secrets! In the 90s, when I played most RQ, the source books spoke of Lunar characters and hinted at this and that, but I was never quite sure what the truth was. Now I can delve deeper as these secrets are mined in the back-storeys of the characters. Great Sister, The White Moon Cult, The Black Army and much more is presented to the reader and I found reading about the characters, institutions and more a great joy. That said there are still enough unfathomable depths left for a GM/reader to make their own decisions about the exact truth for their games (YGWV).
Secondly, is the art by Dario Corallo. There is some superb art in this publication. Brilliant cameos of various well-known celebs - Danny DeVito, Michael Caine, Sean Bean, Tom Hanks and many more. Very impressive. I also love the sun-worshipping hoplite image on page 164 - very lovely.
Thirdly is the nod to 1990s culture (MoonRock Café etc) which maybe more of a draw to readers of a certain age, like me.
In a summary, a lavish publication full intriguing characters, impressive art carried and smartly put together to create a cogent and readable document of over 200 pages.