I just got done reading this book. Very well done. You won't be disappointed. Without giving anything away, the authors do a great job of the Spock/Leila meeting and of course the Kirk/Marcus relationship.
Of course the story centers around "Project:Inception", which ultimately leads to the "Genesis". The authors also do a great job of showing how career-driven these characters are.
Great book! I highly recommend it! I finished it in 2 days.