I stayed at Rosario's place for three months and I can definitely recommend it! Rosario and her husband are really nice and their flat was always tidy and clean. The room is small but it has everything important in it (even a fridge ;)). Stockwell station and supermarktets (Lidl, Sainsburys) are nearby (5 min walk) and the Victoria station is only three underground stops away. I enjoyed my time in London and thank Rosario for having me at her place!