I didn't meet Katie until the day before I left but she was very easy to communicate with via message. I was greeted by the children's au pair, Victoria, who was very lovely and welcoming and showed me how everything worked.
The room was a nice size for my purposes (somewhere to sleep for a few nights while I explored London!) and the bathroom was great. Shampoo and conditioner as well as shower gel were provided as was a comprehensive book of local eats which came in handy.
The nearest tube is a bit of a walk (about 15minutes for me) but the buses are closer and service east London well. Shoreditch high street is only a few stops away and worth a visit. The neighborhood is chill, there's a large migrant community, thus great cheap places to eat some great food. I felt safe walking around on my own even at night.
The freshly baked bread in the mornings were amazing and there was a choice of cereals as well as tea and coffee. Overall, Katie was very accommodating and I enjoyed my stay.