We spent five nights in Rosie's flat and we couldn't be more happy. The room was great and the bathroom also nice (just outside the bedroom door). Rosie is a very kind and helpful host and also provided us breakfast "customized" to our preferences.
The flat is located in a quiet yet central area with transportation near by, with the plus of having a great park minutes away from the building. Everything was "as advertised" with our host's kindness as a bonus. We certainly recommend it and will consider it for sure in our next trip to London.