I stayed the flat with my four friends.
Camilla was great host and gave me a quick reply during my stay.
Though the living room was cold even when the heater is on and we have to take a quick shower because hot water runs out after 2 or 3 showers, all rooms, kitchen, bathroom and toilet were amazingly clean. The location was perfect as well.
Anyway, we had the best Christmas in London with Camilla&Felix's flat!