We stayed at David and Hannah's place for two weeks. The room is large and very comfy, the flat is top notch and the location couldn't be better: It's basically around the corner from the centre of Brixton, with the awesome Brixton market and many, many restaurants and pubs.
David and Hannah weren't there during our stay, so we had the whole flat for ourselves, which was very nice. They were super friendly in our communication and offered to help wherever they could.
I absolutely recommend this place!