I will admit up front that I am one of the people that hated RBOE. I hated the way Sisko was portrayed and the way the story glossed over 4 years of DS9 history. It seem that David has listened to some of that criticism and done a lot to help all of this make sense.
This book does a great job of reminding us what has happened in the past of the DS9R and give us some of the answers to how we gotten to this "future" of 4 years. One of the only problems I had with the book was that David will set up some issue like, Worf's dilemma of what to do about the seemingly duplicitous Romulans, then there is no follow up but, oh he told Picard and it made Picard suspicious. I understand why it is like this, it saves space in the book, but it happens frequently and gets a little annoying not to see the actual conversations and situations that these issues bring up.
The book has this amazing sense of foreboding and fear that is slowly building till the explosive end. Well done! I did figure out most of the story before it was revealed in the story, but I still enjoyed it all coming to a head. David does a wonderful job of weaving the plot treads together into a beautiful tapestry of intrigue and suspense.
Thank you David for your work with Ben and Kasidy. You have really cleared up and cleaned up this story and made it much more palpable. Ben seems to be going through some big changes and I am on the edge of my seat waiting for the conclusion to the story. This is a well crafted story and really brings together the threads of the Typhon Pact series well. David weaves in and out of all of the Pact stories to create a really cohesive whole.
As for the end, I do not believe that we have seen the end of DS9, I am sure that it will survive the explosion (At least I hope so, it's not a starship that can have another one built and it be the same just with a letter added.)