Karen is really great. She's very friendly, not intrusive at all, and makes a really amazing English breakfast each morning. The apartment is indeed quite chic; the room itself is very small, but not a problem for those who plan to spend most of their time in the city. The location is very walkable to the Tube, and there's a bikeshare station half a block away - between those two modes of transportation you can get anywhere in the city pretty quickly. Highly recommended.