Better than book 2 by quite a bit. Still a little disjointed due to the nature of the beast (shared world/mosaic novel/whatever they call these things today) but less so than Divided World, plus the heroes get to make some real progress, although not without cost and also not without at least one eye rollingly bad case of villain stupidity. When a small army shows up on your doorstep, you don't send out a tenth of your forces to give them some sort of fair fight, you sortie everything that's ready and crush them utterly. If there's some sort of kink to Thulian psychology that makes this make sense, we're given no clues about it.
Also, the ending was a bit annoying and seemed not to fit with the way things worked up to that point. But since it's a sorta cliffhanger, it could be cleared up satisfactorily in book 4, whenever that comes out.
There's some neat characters here, although I have to admit, I'm more than a little tired of most of the CCCP, the biggest collection of one note cliches since the last time I read an X-Men parody. They certainly aren't interesting enough to be worth the screen time they get. How's about some more Echo ops? Or maybe a viewpoint inside Blacksnake? That would be cool. Which, BTW, leads into another problem with this series, the biggest strength of shared worlds is the ability to use a wide variety of viewpoints to explore the world, here we get a small handful that actually matter and all but two are tightly connected via Overwatch if not in other ways.
Still, warts and all, this is a solid, enjoyable read for those that like superhero prose.
Also, it's occasionally amusing to figure out the original CoH archtype and powersets of certain characters. Well, at least it was for me.