I arrived in London and booked Karen's room for a few nights before finding a more permanent accommodation. When I needed to extend my stay for a few nights, she has been extremely understanding and flexible. That helped me a lot.
Karen is a very personable host, she made me feel like home.
Additionally, the room I slept in was convenient. And though I am not always at ease with animals, Karen's cats are lovely and didn't bother me at all.