Jennifer was a very kind host and we definitely enjoyed our stay in Sydney. She also managed to provide us with an inflatable mattress for a more comfortable stay.
The location (North Sydney) is probably not the best to visit Sydney, considering that if you stay only 4 days as we did, you will mainly use your time to visit the city centre (CBD) and the harbor. Also, to explore the bay and surroundings (like Manly) you will have to take a ferry from Circular Quay.
Jennifer's house is 900m from the nearest railway station (Milsons Point) going to the city centre, and many times you will be tempted (or required) to take a taxi to go around, specifically after the sunset.
Considerig the location, i believe that the daily rate should be in the range 100 to 120 aud, otherwise it will be cheaper to choose an accommodation in CBD. I will definitely do that the next time i will be back to Sydney.