We had a great weekend at Olivia's place. The house is in a quiet residential street convenient for buses and only a five minute walk to the underground. (It's only about twenty minutes on the Northern Line to the West End).
The room is at the back of the house. It's fairly small, but comfortable, stylish and well-equipped. The ensuite bathroom is smart and clean and has everything you might need. Towels and bed linen are very good quality.
Olivia made us feel welcome (she'd even picked up on the the fact that it was my girlfriend's birthday and gave her a birthday card.) She was a really attentive and accommodating host. She put herself out to provide a lovely vegetarian/vegan breakfast and even rearranged a room to give my girlfriend space to do yoga.
I wouldn't hesitate in recommending Olivia's place to anyone who wants a quiet place to stay in London that's still conveniently close to public transport connections.