When we originally booked this place, Sonia was our host. In the months leading up to our trip, ownership of the Airbnb transferred and Ed was our new host. He was quick to respond up until we arrived in London. After not hearing from him for 3 days, we had to contact support in order for him to respond. After that happened, he was eager to help us.
Something to note about the apartment is that it is small and it will certainly encourage you to explore.
It would be worth going during a non summer month as only a couple of the windows open, and getting a breeze to cool down an already humid apartment was difficult. However we did stay during a heatwave. (90 degrees)
Overall it was a good place to stay. Worth the money because of the location to the underground.