I bought this book on the basis of some of the "good" reviews here - not a good idea if you are thinking of doing the same.
Lynn rattles through her life without really telling very much at all, the only chapter which doesn't read as though she is writing for the sake of it, is the chapter about her husband's demise (which is written with feeling and care), the rest of the book is a series of 'I did such and such', 'I went to so and so' without elaborating, also her persistence in telling the reader how intelligent and pretty she was/is is rather tiresome. She also name drops quite a lot but with little effect as no details are given.
The synopsis on the reverse of the book talks mainly of the lover she had from being a sixteen year old and for a couple of years thereafter and how he conned her and her parents, but by her own admission, she was more taken by his friends than she was actually by him, so why devote so much to him - well, because nothing much else of note is in the book, despite her age and varied life.
I am surprised that this is "soon to be the subject of a major film scripted by Nick Hornby" since if it anything like this book, it will have little substance and it will certainly require a lot of poetic licence to make it of interest.