My friend and I stayed in Afif's house for 2 nights. He was very helpful and kind. We booked for the entire house but in the end it was only a room with bathroom in the 1st floor (it was not a problem for us, but the informations in the site were different).
The house was in a very good position, 10 minutes walk from Victoria Station (train, underground station and bus station).
The only complain we have is that the room was not clean. When we arrived there was a lady that was doing the cleaning so we left for a bit to let her finish. But when we returned to the house the room had dirt on the floor and the bathroom was full of hairs from the previous people that stayed in (we had to buy things to clean the bathroom ourselfs).
It was the only problem for us, and we think it was an isolated case if we see the other good reviews, but we have to mention our experience.