Unfortunately, when we arrived at 2:30am in the morning (due to a delayed flight), we were unable to enter the unit as the lock code that was provided did not work. I had to wake up the host and she was required to provide us with a key to enter the unit (she was also unable to get the lock code to work). She had the lock code fixed the next morning. I felt really bad that I had to wake her up so early in the morning. She was very accommodating and a great host. Will return to stay there again when next in Melbourne.