Compared to the other Vanguard books it felt flat. I dearly loved the others and maybe I went into this one with me expectations set too high. The subplots involving the Defiant and Nimbus III were just filler. We all know how those plots end, and it was not worth taking away from the main story to tell them.
Ganz got the short end of the stick, before I felt a real threat from him, now he was just laughable. It was like he was made a cliche villain from a Saturday morning cartoon. I felt bad for him, and his death was almost a mercy killing.
Pennington and Quin shined though, that I will admit.
Despite my criticisms it was still better than most Trek fiction being released now. I hold the Vangaurd series in very high esteem and hope the final book gives it a proper send off.