Harriet is a wonderful host. Right from the get go, she was very communicative and sent me lots of helpful detailed instructions about getting to her home, checking in and so on, and she was very easy to reach throughout my stay. She also had lots of great tips about Battersea and London, including things to do, things to see and places to eat or grab a drink. (Her local pub, The Latchmere, is a gem).
Her home was really nice, comfortable and spacious yet cozy. I couldn't have asked for a nicer place to stay. There was a nice guide book with helpful tips and instructions.
Battersea, and Clapham further south, are pleasant residential areas with lots of nice restaurants and cafes. While there is no underground station nearby, she is right next to a bus stop with services to South Kensington, Victoria and Vauxhall, from where you can get on the underground or take further buses. I loved the bus rides, and it added to the experience, but it does take around 45 min to get to central London as consequence. (I think it's totally worth the extra travel time). Clapham Junction is a 10 minute walk away, from which you can quickly get to Waterloo or make trips Windsor by the Southwestern trains.
All in all, I had a great experience and I highly recommend Harriet's lovely home.