Staying at Ann's was an absolutely wonderful experience! The area is fantastic with the greens around and easily accessible, being a few minutes from Streatham station. There's a Tesco in walking distance from the house to cover all your necessities for the stay, though you won't need breakfast material since Ann got you covered, and she won't let you need anything for sure! Ann and Tony are amazing people, you get to meet them mostly at breakfast time to hear about their adventures and have rich discussions, a great kickoff for your day.
The room is prettier and spacier than it looks in the pictures, also comfortable if you feel like just sitting around on that big chair.
Will definitely stay there every time I'm in London.