The communication with Christian was unproblematic, he answers quick and friendly. The apartment is clean and in a good state. The only complaints we had, are the sparsely equipped kitchen and the bed, which is quite short even for us (1,70m & 1,60m). It should be mentioned that the apartment has neither Wifi nor TV.
In the front of the house is a bus stop which connects to Sloane Square Station. Despite that, it is not very loud in the apartment.