After looking forward to reading this book, I was disappointed by almost every aspect of it. The story has a general interest to it, but it's marred by a fundamental misunderstanding of the established nature of the characters. None of the characters we're used to (Picard, Worf, Crusher, LaForge, even the Borg) have been written in a way that truly reflects their personalities and their behaviour. Picard especially is full of turns of phrases that you would never expect from proper Star Trek writers in a million years. This reflected on the characters original to this book, for me, as I couldn't believe the author was capable at all of portraying apt characterisations (with the possible exception of T'Lana, the counsellor).
Add to this some ignorance about the established facts of Star Trek, such as calling Picard's heart human (not artificial) and wrongly quoting a sequence of events from First Contact that appeared to be very important to the character internally describing them, this made for a book whose writing and continuity were poor. The only saving grace is a reasonably compelling story; although for it to be told, past Star Trek novels, films and television, and what they have told us, had to be battered.