Why all the hate? I liked the Romulan war books, and Seize the Fire, the STO book was good too not great but good. Constructive criticism is one thing but the catcalls from the peanut gallery is another. Especially the ones who admit to not having read this most recent book.
It's true Martin and Mangels write better together because their skills complement each other. Complaining that separately their writing isn't quite as good is like complaining that the Olympic team sets a higher standard than the professional teams the players are gotten from.
I read half of his most recent book, it was terrible.