Have read better
I have read a good few Harlen Coben books, (Gone for Good, Tell No-one and more), but came across this just a week ago.
Once you start, you get the gist of the main plot quickly and it has plenty in it so you can't guess the ending.
While it's very easy to read and only took me 2 days, his later stuff is better as you will be able to tell when you read them. If you haven't read Harlen Coben before, give him a go. Well worth the time