"Mr. Big" had an interesting premise and I was looking forward to read this book. Overall the story was enjoyable and I also liked the characters although they were a little bit clishée. My problem with the book was mainly that there was too much up and down in the drama between Holland and Oliver. Once something was sorted out, there was the next fight or problem on the way. This was a little bit too much for me and had me annoyed by the end. The relationship also developed a little bit too quickly. This book was an entertaining read but remained mostly average to me.