2-3 stars. So many people love this book, and I can see how and why. But it's just not for me. Actually, I think one of reasons so many loved it is the reason I didn't. 
 I did not like that it was told from the point of view of a five year old. At all. 
 Firstly, it detracted from the story for me - the kidnap (and capture, and recovery) itself would have been much more interesting for me and we actually learn very little about that, because that is not the type of thing you let a five year old learn about. There were so many more things I wanted to know more about, but the five year old didn't so we, the readers, didn't. 
 Secondly, I found him really, really annoying. And then I felt like a b***h because he's five and a nice person wouldn't dislike a five year old so much. But I did. I found him selfish, self-obsessed, naive, kind of mean, and god damn annoying. And of course he's all those things, he's five, he's never been out of 'room', he doesn't know anything else. Can I blame him? No. But it doesn't make reading his voice any more enjoyable. 
 I hated how he referred to every object like it had a name (we ran on Rug, she picked up Spoon), I hated how he kept asking to 'have some', I hated his inability to sympathise with his mum at all and his anger when he didn't get his own way. Just a few examples... 
 The storyline itself sounded brilliant and I really liked the idea. What little we do find out is interesting. I think if it was told differently, I could have loved this novel. 
 The ads make it seem like the movie is told from the third person perspective so when I get around to watching it, I think this will be my first ever case of liking the movie better than the book. 
 Also, I don't have kids myself, can you tell?