I finished this last night. A lot to like in this novel.
I always enjoy Mr. Cox's 5 year mission novels but setting this story post-FF and pre-TUC really gave it a fresher/different flavor. I liked the FF references (and props -- thruster boots!), subtle foreshadowing of TUC, and that the descriptive passages never let us forget that this book is firmly entrenched in the movie era. My hope is that this isn't our only movie era novel from Mr. Cox, since he shows here a real knack for capturing the "feel" of that period so well.
The whole concept of the GRC is very interesting to me. A civilian, non-Starfleet agency offers a different perspective to humanitarian efforts than we're used to in Trek and I'd like to see this explored more in other novels. At one point in the book, it's suggested that GRC members may be linked in their desire for redemption and this bit of information made me even more intrigued with the group. (Bonus points for including a theatrical Horta

)
Sometimes, Treklit readers are so accustomed to spot-on characterization and note-perfect dialogue from our regular group of Trek authors that it goes without mentioning in these threads, but I'd like to take a moment and compliment Mr. Cox for this book in particular. He nailed every character wonderfully, especially the nutty Lenore's healthy dose of the Bard mixed into her melodramatic musings. Good ol' McCoy needling Kirk with, "Try the handle" after the latter unsuccessfully tried to walk through a door: I actually laughed out loud after reading that section.
I liked the new character of Banks. In my head, I cast Carrie Preston as Banks, using her southern accent from True Blood. She fit the character pretty well.
My only criticism of the novel would probably be the Spock/Scotty side-adventure. Whenever the story cut to them, nothing much was ever happening and it limited their involvement in the primary storyline. I did like the remote ice station sequence but I guess I would've just preferred their participation back on the ship.
All in all, a solid, entertaining read and proof that Mr. Cox should definitely return to the movie era for future novels.