Very good and really an essential source book for understanding the setting most pervasive tech. Mind you, using this material will enrich your campaign, but it does require your players to think about how they deal with the 'Net'/communications/information-gathering/hacking/security. Not every player knows how to deal with more than "go in guns blazing" or "bluff the guard" types of complications: linked security systems, face-recongnitions/crowd-analysis software and such make everything more complex. Whether you like that is up to you and your players. I do! ;)