I've read a couple of King's books and I think I like this one the best. Its obvious (at least to a lay person like myself) that King put a lot of research into this story. Between the descriptions of international law to the near-verbatim deposition, there is a ton of info in this story I doubt you could get from the TV versions alone.
I, personally, thought the deposition chapters were fantastic. Well written and easy to follow. Not to mention fascinating. Talk about getting into the mind of the murderer?? I'm not sure any writer could have expressed the workings of Perry March's mind in a better way than to present his actual words. I was also fascinated by the way the attorney for Janet March's parents drilled Perry during this deposition. It was a chess match!!!
I liked how King linked all the keys to the case together. Even though its fairly linear, I can't imagine its easy putting all that info together in a manner that is easy for the reader to follow and understand. Of course, it doesn't hurt that its a sad, tragic, but still amazing story. I am always amazed at what human beings are capable of doing to each other, especially toward those they supposedly love.
I doubt the author was looking for a Pulitzer when he wrote this book, but it is certainly entertaining. If you like the true crime genre, it is definitely worth a look.