My stay at Andrea and Mark's place was lovely. They were the perfect London hosts, sharing lots of good info on the city and the neighborhood when I arrived. While it's not super close to the city center, I found it to be very accessible by frequent bus to anywhere I had to go. And Newington Green was a great area, filled with good grocery and restaurant options. The basement apartment is very nice, reflecting both their design skills and the care they have taken with it. I'd definitely return someday.