I LOVE Marian Keyes also, all her books are good, easy reading perfect for holidays or just chilling out!

I read Watermelon at 15 and loved it, it was very emotional though! Then a few years later I read a few more, now I've read them all!

Agreed though that Under the duvet, and Further under the duvet are not so good, but I think its because you don't have a chance to get in to the story before its over!!