We had a very nice stay at Adinas house. She and her son are very layed back and open and super easy to live with. The flat felt like home to us in no time.
The room is quite large, it has a balcony and en- suite bathroom.
The flat is located in a quiet road and you can walk to the Elephant & Castle tube in about 10 minutes. From there you are in the city center in a only few stops.
I would very much recommend staying at Adinas.