I had a very pleasant stay at Sarah's and Brian's. Very nice and generous hosts with a lovely little girl, friendly cat and cosy, clean home.
The room really is tiny but it's all explained very detailed in the description. Also, Sarah and Brian have thought of small details a traveler might need which I really appreciated.
In addition to that the neighborhood is quiet and seems pretty safe to me. The Underground is 10min walk away and with the Bakerloo Line you are pretty quick at the city center.
I really enjoyed my stay here and can highly recommend it! I will probably be back again as well :)