Well, to make it short, this is not a book you have to read, nor is it a very intellectual type of book. However, I have so far read it three times, each time in only a few hours.
It's a good read, refreshing and enjoyable. Although it's rather a book for the "in between" times, when you're not quite ready to start another 600 page book, or just need some cheering up, this book will give you laughing fits (at least it did to me) and is definitely worth a read!
However, since it's a little bit predictable in the beginning, it only gets 4 stars.