I enjoyed Amanda's home. I can guarantee you will never stay in anything quite like it.
It is very small - best for one person - but the bath and bed are comfortable. Amanda met me at the house and was most helpful about how to manage getting around and seeing places I hadn't thought of.
I also recommend the Kennington Pub just down the road. Friendly bar staff, nice atmosphere and always plays BBC news, not sports. In addition, the co-op grocery store nearby has the cheapest food prices I found in London.