We had to leave our Airbnb after being there for not even an hour as the house was infested with cockroaches. The owners were aware as there were traps set and spray however we were not notified. There is a cockroach problem in sydney, yes however this was excessive. In 30 minutes we saw 9. The numbers kept climbing the more we stayed. They also were on the walls. We had to leave and stay in a hotel at 12:30 at night. Airbnb also issued a full refund, cancelled our stay as well due to the problem.