We had a nice stay with Pilar. Her location is very good for the bus and underground routes. She went out if her way to help us charge our phones when our European adaptors didn't work. FYI: British plugs are different from the rest of Europe.
Her flat if on a busy street and I think near a hospital as we had many emergency vehicles and a lot of traffic nose during our stay. We did have our own bath which was nice, but it is not ensuite. You will need to walk down the hall past the main living area. Fine place for a short term stay.