For those of you who are mad that this ook doesn't feature Voyager or anyone besides Janeway: If you skim through the book, you can easily tell that this book is Janeway and nothing but Janeway.
That being said: Yes, Janeway is out of character. But guess what? It's a story that Janeway's telling. Maybe it happened, and maybe it didn't. That's what we're left to guess at. Here's another way to think about it: Chakotay making up Indian stories to prove a point to someone. Jesus coming up with a parable. Did it happen? Probably not. Or maybe not that exact way. It's a story and you just 'go with it' and enjoy the ride.
Anyway, back to the book... Basically, Janeway is exploring and comes upon this little bar where all these captains sit around telling 'war stories'. She's asked to tell a story and begins. The whole novel is her story, basically.
What did I think of the book? I loved it. It was an interesting story and I really couldn't put it down when I first read it. And get this: I've read it several times after. Now that's a good book!
So do yourself a favour and read 'outside the box...er, ship' this time. Well, unless you hate Janeway - then don't read the novel.