I had a great stay with Fiona and Paul. They were very helpful and friendly and their house was adorable - as Paul explained, it's a classic London-style house.
I loved the location as well. Hammersmith is a great area of London and it was very easy to access public transit and many lovely restaurants and pubs. I felt very safe and comfortable walking around.
I would definitely recommend Paul and Fiona's place to a single person visiting London.