We found the keys as described by Maeve. We only met our host briefly when we couldn't lock the outer door, but she dealt with that quickly and efficiently, getting a locksmith in. The flat was great, very spacious and comfortable; loved the walk in wardrobe. It was good to have the washing machine and dryer too. It seemed quite secluded, and yet when you got through the gate it was a busy residential area close to several subway lines. We found it was better to walk a few minutes more and go to Atlantic Avenue as there was more choice of subway lines there and they were more frequent than the C line.
The only issue we had was the noisy water pipes which clunked at tapped at intervals sometimes very early in the morning.