Yes, it's a very nice and as you say expensive area. I used to live in a rented flat in St John's Wood High Street. Abbey Road Studios are nearby with the famous zebra crossing outside. I went for a tour inside them once. Paul McCartney has a house close by the studios - I saw him once when Linda was alive. They were walking arm in arm down the high street. We had the same window cleaner. He told me Paul was a very nice man, he would get up early and take his children to school. The children went to the normal school, not a private one.