We totally enjoyed our stay in London ! Emma's appartment is very central and you feel like being a real Londoner. The neighbourhood is quiet and you have some very nice restaurants and bars close by :-) Though I would recommend it for 2 people and not 4, especially if you can't sleep with noise around. Windows are very thin and when you sleep on the couch, you hear noises from the street. It's not a street with bars or restaurants so if you don't mind, then go! You'll enjoy it!
And to finish with, thank you Emma again for letting us stay longer so we don't have to carry our bags all day long!