Mary and Katja were amazing hosts, their apartment will add to the authenticity of your London trip as it happens to be extremely British. I was greeted with a proper welcome and was handed maps and instructions and was told I was welcome to ask questions anytime. The Victoria underground line which is the closest at 5 mins (European walking pace, 1.6 X American pace) reaches directly to oxford circus and the main shopping hubs in the city. Would stay there again no questions asked.