I just finished the trilogy, and I can think of only on word to describe the whole thing: bizarre.
This third book, while the story with the Natives felt very much like Robert Sheckley's "The Laertian Gambit" (and I still have to wonder whether the story actually started with him, and then for some reason was given to Dafyd ab Hugh who had to finish the trilogy), the Emissary's Sanctuary/Liberated plot was very reminiscent of ab Hugh's earlier DS9 story "Fallen Heroes". And when Book Three starts I could definitely see where the writing quality had vastly improved over the prior two books, and I figured that ab Hugh had reached a point in the story where he was flying solo in terms of how the stories were going.
But by Chapter 11 everything started to fall apart. All of a sudden it seemed like I was reading a completely different manuscript, since there were a huge number of spelling mistakes, even a few sentences where the period was placed two or three words before the end of the sentence, plot points and different thoughts would start but then not be finished. One plot point that was like that was after Kai Winn's bomb went off in Chapter 16. Kira stabs Winn, and then Winn and one of the Liberated is transported to the infirmary, the Bomb goes off, killing all the Liberated on the command deck and not killing Kira due to the bodies of the Liberated being on top of her, shielding her. Then Kira gets out from under the bodies, lowers the shields, calls the USS Harriman, which sends over a Starfleet officer very quickly (and there's no indication how he got on, he just appears while Kira is looking at the turbo,it which had descended, and she was afraid that more Liberated were going to come up, but it's never explained what occurred with the lift). It's never explained what happened to the Bajorans who were manning OPS. I would assume the were killed but it is never said, just like we are never told about the fate of the remaining Liberated on DS9 (apparently once their leader is killed, everyone dies).
The last few chapters felt like an early script the needed a lot of polish.