I really enjoyed my stay at Gabriel & Mecnun's place and I'd definitely recommend it.
The hosts were friendly and welcoming, made sure I'd feel at home and enjoy my stay in London, taking care of all the little things - from travel guides and recommendations to water, coffee & tea, AC adapter and extra towels.
The apartment was very clean and well-decorated, with a private and cozy room, located in a safe area, nearby bus stations and a train station several pubs, cafes and restaurants. At first I was concerned about its distance from the main tourists' attraction, but I enjoyed exploring the are, and it wasn't that far.