This is one of the best Airbnb's I have ever stayed in! Effie is a really wonderful host who is very kind and helpful. She is quick and responsive to messages, and she warmly greeted us at the flat and showed us everything about the place. The flat itself is gorgeous and clean, and remarkably large for being in Central London. You will not find a better value for money.
The location of the flat is also remarkable. It is within a short walk of everything you could possibly need, from grocery stores and pubs, to Victoria Station, Buckingham Palace, St. James' Park, Westminster, and Big Ben. There are two tube stops within ten minutes, one for the Central/District Line and the other for the Victoria line. You can get anywhere quickly from this flat.
I highly recommend staying with Effie. She is a great host with a truly remarkable flat. Our trip to London was superb because of her hospitality!