Sarah's place is really comfortable and clean. You have your privacy but you don't feel alone. Sarah was a very nice host, making me feel at home and welcome.
The house is located in a very nice and quiet quarter. Train connections to Perth and Fremantle are good, and you can reach the station in 12-15 min walking. There is a bus from another station, which saves you 1/2 of the walking, but I never used it. I never had to come back late at night. In this case I (woman) would probably not feel very comfortable walking home alone because streets are so quiet, even if Sarah ensured me that it is very safe area.
From the house it is a nice walking to the beaches of Swanbourne and Cottesloe. Don't miss to have a drink/eat at the terrace of the restaurant at Swanbourne beach close to the rugby club and enjoy the sunset :-)