I stayed for 3 weeks to have classes at Westmead hospital, and have to say that this is a good place to stay. The apartment and area feel safe, you'll be right next to the police station plus the property has cctvs plus password protected main entrances. It's also very convenient. Train station is a few minutes minutes walk, and food/grocery areas perhaps 5-10mins from your doorstep.
The house itself is comfortable and nicely decorated. Nick has thoughtfully supplied items/appliances for his guests.
Of course Nick himself is a huge plus. He's very responsive and helpful in his correspondence. Wonderful, kind host. 10/10.