Sarah and her family were very, very nice hosts! The accommodation was located in a calm neighbourhood in the south of London, but close enough to reach the centre in about 20 min. Sarah and her family have a beautiful house and seemed well prepared for any types of guests with maps of the city, adapters, a hairdryer and so on. Everybody was very helpful about any questions of possible Dos and Don'ts in London and I reallly appreciated the time.
If I will come back to London, I will definitely try to contact Sarah again!