Lots have already been said about Gillian Flynn's book that's proved to be a bestseller. (Here's Keith Rawson pretty good essay on the book.) It just came out in Finnish and I read it in almost a jiffy. In two days, actually. I've been sick, otherwise I might've read it in one sitting. The plotting is that clever.
Except that the book's too long. Gone Girl - in Finnish translation at least - is over 440 pages. I should say it could've been at least 100 pages shorter and we wouldn't miss a thing. There's too much information we can't use as a reader, too much lingering on details that are not very relevant. This is especially case in the beginning. If I didn't know there was something to expect, I might've dropped the book before the page 100.
Of course one can say that the ending wouldn't be strong enough if the first part weren't so fully detailed. I'm not so sure about that.
But there are enough chilling moments to account for those empty moments when nothing much seems to be happening.