We spent a couple days in Marco's apartment where he rents out all rooms to AirB&b guests. The apartment is small and cozy, with one bedroom adjacent a narrow kitchen downstairs and two rooms + bathroom upstairs.
Pros:
Apartment is located very close to the Elephant & Castle train station and bus stations, a pharmacy, and a great pub that you should stop into "Prince of Wales." The owners were super nice!
Wifi worked well for us.
Towels were provided and Marco let us borrow a charger for our electronics.
Decor of the apartment was also very nice and cozy.
Cons:
Walls were thin and the guests in the other room were less considerate.
Also, the building itself is much shabbier than the actual apartment. There are actually a group of people who sleep outside of the building, but they never gave us any issue.
Marco met us to give us the keys and made himself moderately available. We also saw him cleaning the rooms thoroughly between guest arrivals, which was comforting.