The idea of this book is very very good, having three (very talented) writers write a part each, but the result is not.
I've given it three stars simply because I did finish it, and parts did make me laugh, but if the book had been stolen from me halfway through, I don't think I would have bothered buying a new copy.
The problem is, that there are simply too many heroes and heroines, and they all need to have their happy ending. But they each have so few pages, that there isn't time for you to get to know these characters or feel any kind of interest or sympathy towards them. They fall in love at first sight or are already in love when their part of the story begins. There's no drama, no conflict or villains, and it's all just a bit... boring.
As written above, I like the idea, but I think it would have been better done over three separate books.