David's place is great! the underground is about 5 min walk and its amazingly connected, just 1 stop from Kings Cross and about 20 min from Picadilly Circus. There is a Tesco about 5 min away (which stays open until 11 pm) and there is also a Sainsbury's 6 min away.
David was really helpful and friendly as well, he always answered any questions we had.
We really enjoyed our stay!