Annie is a great host! She is kind, responsive and very helpful when my wife and I were travelling through London for the first time! The apartment was clean and the location is fantastic. It is right next to a DLR station and the neighborhood is super nice: there are a lot of coffee shops, supermarkets, restaurants, etc. The apartment was also extremely quiet, as all windows are facing the inside garden of the building, which is isolated from all traffic.
One note is that the apartment is lived in when guests are not occupying it. There is definitely a feel that you are entering somebody's home, as there are things scattered around. This was not a dealbreaker for us, as the apartment itself was cleaned well before we arrived.