I like the fact that this is a detective story from another angle. As an insurance investigator, Quinn doesn't have the same resources or powers that the police have, but he is still able to get to the truth of a situation faster than they can. He is fortunate that his father is a retired policeman and his brother is still on the force in that dropping their names gets him further at times than his own name alone would do. The fact that his brother considers him a stain on the family name and prefers not to speak to him, is no barrier to Quinn's name dropping. His own criminal past is little hindrance to his investigative abilities as he uses the things he has learned and the contacts he has made to best advantage in his post-jail, going straight world. It seems that Quinn has always been a helpful kind of man and a lot of people seem to owe him favours which he doesn't hesitate to call in to help him resolve this case. Being an ex-boxer and keeping himself pretty fit is also a huge advantage to him when the bad guys take exception to his investigations, but will it be enough, as having a criminal record means that he isn't allowed to carry a gun and can't afford to break the law, that is not a regulation which the people chasing him are too worried about adhering to.
Basically Quinn is a nice guy who has made mistakes in the past which he is determined not to repeat. He also has a big down on himself, and will do a favour for anyone but himself. There are a number of ladies who would be glad to get to know him better, but he thinks they deserve more than him. I do hope that there is at least one who is not so easily put off.
This book isn't high octane, even though there are a few car chases, nor is it an unputdownable read, but it is diverting and entertaining and I enjoyed it and would recommend it. I will also look out for further books in the series and am sure that I will also enjoy reading them.