Though I haven't yet read the Technocracy: Void Engineers, this is my favorite of the first edition Convention Books. The Syndicate is presented clearly, with the reasoning behind what they do and why they can't push to do more (such as abolish money and make everything free). It does a far better job pushing the Syndicate as a "good" guy than Iteration X, Progenitors and NWO did, though a big part of that might be that all three of those books praise the Nazis in some way, while this one takes credit for the one thing that Hitler did right (rebuilding the German economy) and then tries to take credit for undermining him, rather than saying things like that the camps were a great success for medical research.
It's still a first edition Technocracy book, though clearly by this point, the 2nd edition view of the Technocracy had started to take over, though it was still two years before Guite to the Technocracy was published. So it has some issues, like making the Syndicate and New World Order have a bit too much overlap (this isn't quite solved in Revised, though giving the Syndicate Primal Utility and REALLY tying them to their paradigm of the Bottom Line helped a lot).
Oh, and of course, this is in small ways a crossover book with Werewolf: the Apocalypse.