The apartment is maybe 30 minutes away from the center (Westminster). By the underground that is. So it's totally acceptable. The apartment is in a residential area and quite calm, although you can hear trains. The room is very small but quite cosy and only really there for sleeping and relaxing in bed. David seems like a nice person but I didn't talk to him that much since I was sightseeing all day and went to bed early in the evening. You can use the kitchen as you please and use the living room with a TV and couches. The apartment seems to be a little bit older, so keep in mind that not everything is brand new and can seem worn out. I didn't mind though since everything was clean. I can definitely recommend the apartment and the room to people on a budget and who plan to sightsee a lot.