This flat is perfect for 2-4 guests, is amazingly clean, and well stocked with everything you may need (toilet paper, towels, cooking oils, basic spices, etc.).
The location is great, a little outside downtown, but still in Zone 1. Basically within one underground train change from anywhere in the city. Easy access to the airport via the underground.
Martin is a great host, very attentive and easy to get in contact with. The bathroom overhead light went out on Christmas Day, and Martin changed it within 24 hours! This flat is great and we would absolutely stay here again if we come back to London. Would highly highly recommend.