I zoomed through this book, which had a lot to do with the entertaining writing. Some bits of the book didn't match up with my reality, however, after some thought, I'd rather read and enjoy a book with some factual errors, than read a boring but highly factual book. Besides, a story has the right to stray from reality ;)
At Ginny's age I did not travel Europe, I waited some more years because I didn't have the guts to do it at 18.
I enjoyed reading the parts about places that I have visited myself and could easily imagine myself back there for which the book gets points. I wanted a story to entertain me. I feel entertained. :)