First off; this is quality sci-fi writing served up in easily read chunks. It's a great read anytime, but I found it fit quite nicely into a morning commute.
It's a great look into the world of Eclipse Phase; and provides some view points that have been missing from the rule books.
It's also a nice bit of kit to have in your GM tool box, as it provides succinct explenations for for some of the more difficult to grasp elements of the setting. Such as the mesh, and ego & morph. All right at the front of the book.
Fully recommend picking it up, and lending it to your new players.