The first thing that came to mind was 'forward momentum.' After walking away from the last several DRG DS9 books feeling that they were moving so slowly, roughly a third of each or more could have been hacked out and no discernible difference could have been made, because nothing was really even happening, just people saying 'that's a thing that's going on, wonder about that thing, that thing's gonna be important one day, let's be concerned about that thing, since we don't know much about that thing, that thing that's going on.' ...This felt like things were actually addressed and developed and that we were not still in the same place at the end that we were at the start.
We got momentum and resolution to plot threads that had been (for me at least) dragging for the better part of a couple of years, finally resolving issues with Morn and Vic, which I had honestly found to have been so tangential to the matters actually going on in the 'main' plot - the station's reconstruction, the lingering thread of the Ascendants, and the Endalla issue - that I'd have been happy to see these threads dropped entirely, despite the characters I liked being involved. It honestly felt like the purpose going in to this book was to clean up the lingering mess (for lack of a better word) left over from DS9's time jump so that a genuine status quo and main cast could solidify between this book and the next, something I've been hoping for over the last several years. If we want to broadly approach the DS9 focused books over the last several years in the same way as we would a television show, despite the years-long stretch of time that they take, from Plagues of Night/Raise the Dawn to here, this was the finale to a season that had a lot of things to sift through and clean up, for better and for ill, and it proceeded to set up the next season, free of most of the baggage of these various threads that have been tied up in a knot for so long.
Even more important from my perspective, however, this was, at its heart, a character story. Four stories, Kira-Altek-Pralon, Nog-Candlewood-Vic, Ro-Quark-Morn, and Odo, and I'd say that's roughly about how important they were to book's narrative, and it worked.
For Ro and Quark, it was both surprising and not that they ended up at a point where Ro officially ended their romantic relationship. Surprising because this HAS been an unexpected but solid element of the DS9 novels over the last ten years, that they've had this murky relationship status for so long, but not because... Where was it going, a question Ro dealt with herself. I honestly kind of wished for more of Quark's perspective in the aftermath of that, but I'm comfortable with waiting for the next book to deal with the fallout.
Nog's story was a little less engaging for me, but that was mostly because of the confines of the program he was spending time in. For what it was, though, I appreciated it - it was good, solid character work for Nog, showing his dedication to his friends. It was also very useful in giving Candlewood a character. I've said it in the last couple of review threads for DS9 books, I needed more of the characters to actually make them stick in my mind. Blackmer had been a major figure, Stinson got developed some in Ascendance, and now Candlewood has the building blocks.
Where Nog's story wasn't to my tastes, Kira's more than made up for it. She has been sorely missed, and, while I remain unconvinced of what took her onto the path of the clergy (I said it in Ascendance, it felt like she was retroactively placed on that path, rather than it being a natural development), this FELT like Kira. She set out to do what she saw as the right thing, regardless of the ways that those above her view the matter. But this was a Kira tempered by time, knowing how better how to walk the line. THIS felt like the Kira Nerys I have known for so long, just having taken steps down a new path. The distant figure of Vedek Kira from before was no where in sight, and I was glad for it.
I also appreciated the segment from Kai Pralon's point of view. Like Kira, I was having worries of her turning in the same direction of Kai Winn, and while all of those fears aren't dispelled at the moment, it felt like both the character and the narrative were used in that moment to show that she is trying to do what she feels is best, and that, unlike Kira, she is looking at it from the perspective of someone who thinks about effects on a global scale, while Kira's focused on the personal one.
The remaining issues - Altek's origins and the relocating Dominion refugees - feel like stepping stones for the next chapter of DS9's story. While I still want to see the 'main' storyline of the DS9 novels open up their authorship, if this is the way that DRG approaches future installments, I'll be content with it, in a way that I didn't feel as comfortable saying after previous works that were lacking in the feeling of genuine conclusion.
That's not to say that there weren't some moments that didn't work so well. The expansion of established characters is appreciated, but taking them one at a time like this, Blackmer one book, Stinson the next, Candlewood the following... It's a start, but the main cast still feels incomplete. Ro spends a couple of paragraphs thinking about Slaine's promotion but the character goes otherwise unmentioned, Kira wants to go meet Prynn in person but we don't see this, and I'm still having a sensation of the names of various new characters going in and out of my head in the same second. If we could get these characters and their positions firmly set and their status as either "main cast" or "supporting," as in would they be in the opening credits sequence or not, I would appreciate it. Just mentioning them for a paragraph or two isn't enough, they need to actually play a role.
Additionally, and I know I've said this elsewhere... While this isn't entirely the flaw of this book itself, the new station is still skewing towards the old one in my mind. Even with a passage early on where Kira is comparing the differences in the station's architecture, and even a handful of cosmetic mentions, ultimately, I keep coming back to this feeling that, for all intents and purposes, Starfleet-built DS9 is still Cardassian-built DS9. And some of that is just the fact that Cardassian!DS9 was the visual on the screen for seven years, as well as the conceit of the series that it IS set on a station... the new DS9 just does not have any character of its own for me. In my mind, these conversations and scenes are still taking place in Ops, the Infirmary, Quark's bar. And the comments about how different the station is feel like trying to convince us of it, rather than giving us a real feel for the new DS9 and what makes it different. Maybe this is just the flaw of having destroyed the iconic station and also rebuilding it in the same duology, but I did have this feeling of the book trying to convince me that the station is different without really trying to explain what those differences are.
Ultimately, though, I would give this an A-. A few minor flaws that keep it from going over the top, but a significant step up in character development and story momentum from the way that the last few 'main' DS9 books (re: ones written by DRG, not The Missing or Force and Motion) have felt dragged out.