The rules section of this book is IMHO unfinished and not ready for publication.
Once the publisher releases an update with complete and proofread rules, I will edit this review and discuss the rules themselves. (From what I've read so far, my review would be a fairly positive one, but for now, I am surprised and somewhat angry that Catalyst would release a book at this stage of development.)
Several sections of the book obviously use or refer to earlier, outdated versions of the rules. (One of many examples: P. 68: Your Runner starts with at least two weapons; the group must approve if you want more than two. In the example, Sledge selects four weapons. - P. 83: Sledge has a Level-1-Amp "More where that came from", granting "2 additional weapons" and the ability to "trade melee and ranged weapons", whatever that is supposed to mean. - P. 66: Sledge does not buy this Amp in the example for buying Shadow Amps. - P. 204: The Amp shows up in the complete listing of Amps, but with an Amp-Level of 2.)
Stats for vehicles and drones are missing (except for mounted vehicle weapons and "enemy drones"). This is a bug, not a feature - the rules do make reference to stats like vehicle armor or durability, for example, I just could not find these stats anywhere. Didn't anyone play a Rigger during playtesting?
Stats for Technomancer Sprites are missing completely.
I just hope this is not the file that was sent to the printer!
[1 of 5 Stars!]