I didn't read the first book in this series, but this was a freebie, so I decided to give it a chance.
Billy was hands down the best part of the book. He was generous, sweet and nice to everyone. An injury ended his professional baseball career, so he helps his grandfather realize his dream of owning a vineyard. He hires Brooke, the girl he kissed once in high school, to manage the place. I really didn't see what he saw in Brooke.
At first, I liked Brooke, but she quickly got on my last nerve. She was constantly hot and cold about Billy, and seemed to be judging him all the time. She had him pegged as a jerk and a womanizer with zero proof that he was either. She also held a huge grudge about high school, which seemed really childish.
This book was a bit on the long side, it dragged at times, especially when in Brooke's head. If it were 20-25% shorter it would help.