I had a really comfortable stay. The room and bathroom are both clean and spacious, with the added bonus of a balcony.
Karen is a really good host and I enjoyed talking to her in the mornings. The location is good in terms of a balance between peace and access to public transport. Proximity to Battersea Park and the river makes Karen's place particularly good for taking it easy at the weekend. I would have no hesitation recommending Karen as a host or her accommodation for a great place to stay.