Apartment located 7 minutes walk from Saint Pancras station and 5 minutes from Russel square station, in a quiet residential area but with many small restaurants in the surroundings . The apartment was extremely clean on arrival, very well equipped. The communication with La is perfectly fluid and is very "accommodating" about arrival and departure times.
It is an apartment in souplex so you can hear the subway a bit but frankly, it is not a problem (unless you spend your days in the apartment).
The apartment is located under a small restaurant ("pitted olive") but it closes early in the evening so not much noise from this part.