Coming in very late to this discussion, so please forgive me if I rehash things that may have already been addressed in the 34 preceding pages.
I see where others get the impression that this really seems to be little more than filler. We're filling in some blanks before the Battle of Manticore; we're filling in some blanks before the Battle of Spindle; before the Yatawa Strike, and so forth.
I once read somewhere that about the time of War of Honor is where the series began a transition from military science fiction to political science fiction. That makes sense when we start to see how the Honorverse setting suddenly had much broader horizons than simply Manticore and Haven (and Grayson and the Andermani). We're now including the Talbot quadrant, the Solarian League, Mesa, Torch, Erewhon, and all points in between.
If you have an overarching plot involving all those locations, it would be impossible to adequately convey the scope and intricacies without diving into the kinds of details that begin to bog down the immediacy of the action. DW seems to have struck the compromise of giving us the highlights in previous novels so that we can move forward while saving the details for the times where he feels it's appropriate.
As a case in point, while the first 3rd seems to deal with the events of Monica, what he's doing is setting up Ginger Lewis' promotion to Captain, the aftermath of her assignment to Weyland, and how that affects her assignment as Captain of a ship. Those kinds of details would have detracted from Shadow of Sagamani and Mission of Honor, but work here.
In a similar fashion, the journey of Damien Harahap illustrates the implementation of the Alignment's plan and how that affects the hopes and dreams of real people. To MA - it's an operation. To the residents of Swallow or Mobius - it's a chance to break out from the hell of their lives. I think if you read close enough, you begin to see Firebrand develop a bit of a conscience regarding what he's doing to those people. It's not (yet) enough to stop him but it's something he considers more and more as SoV progresses. It will be interesting to see how that plays out in the next novel, especially in light that he has to suspect that Mesa put a deadman's switch into his various booster shots.
I also liked the various pieces where members of the Gendarmerie begin to see pieces of the MA plot, which brings us back to Daud al-Fanudahi near the end.
Of all the novel, the only part I really think should have been in another book (in this case Cauldron of Ghosts) is the end-parts on Mesa. What happened to the Detwilers would have been a perfect end point for CoG as Albrecht becomes one of the casualties himself. I can see why it might have been removed (to better focus on Zilwicki and the siege of Neue Rostock, but it still seems more fitting there.
Like some others, I'm afraid my eyes glazed over with the Polish and Czech plots due to the volume of (to me) unpronounceable names. No offense meant to anyone - it was just very hard to parse.
On the whole - I liked this story. I'm going to re-read it again to see if anything else jumps out at me.