Mainly of interest to collectors of the book series who want to have a complete collection as this isn't half as good as the actual TV episode. It's more of a curio to see the earlier draft ideas before things were ironed out and improved than something great in its own right. Lots of things don't ring true, such as O'Brien being called Ensign or some of the action with Jake and Nog, and Keiko and Molly, but that's the point of a novelisation, to add scenes and detail that didn't make it into the filmed version. The story is strong enough that the quality still shines through in places, such as in the scenes with Sisko facing his anguish, but as it was written before the episode was completed it doesn't improve the story as a novelisation should. Admittedly that would have been hard to do. As a book on its own, assuming the reader hasn't already seen the episode it makes a reasonably entertaining read, but I would recommend watching the actual episode much more.