I agree with several of the other reviews here. The subtly and elegance of the writing was masterful. I have not seen the movie and from what I've heard, think I'll just leave it that way. I came away with such vivid pictures of these characters I would hate to spoil it, like toothpaste after orange juice. The progression of the main characters from independent interesting women into their tangle of dependancy was so smooth you hardly felt it happening. I made me really look at the more subtle aspects of who we lean on in our lives and why.
I also agree that the narration was perfect for the book. I really enjoyed the entire package.
I love the tongue in cheek tone and wit in this book and the narrator's voice is perfect for the character. Loved the movie and this is even better.