I never met my hosts because I arrived at their apartment when they were out and I left the next morning at 5.34 am before they were up. I was sorry that I could not collect the key directly from their apartment rather the key was locked inside a locker at Southern Cross train station a half hour walk away. The key is not available from the Station until after 1.30 pm so if you arrive from the airport before that time, you have to make decision what to do before the key becomes available. If their airbnb site had explained the key process then I would not have booked with them because I arrived earlier and had to make special arrangements to get back to Southern Cross later in the day before making my way to the apartment. For me the key collection process was inconvenient. However for guests reaching Southern Cross train station after 2pm I do not think there would be any of my inconvenience for them.