I stayed only one night at Petra's and that was perfect. I highly recommend her!
I haven't met her though but before my arrival she has been very clear and helpful on how to get to her place from the airport and how to get the keys of the house as she was not at home.
Her flatmate has also been very welcoming and friendly.
Buses are near her place, really close to Bondi Junction.
Nice view on the skyline from her yard.
Really happy of my experience at Petra's!