Carmen is lovely and welcoming. She is fun to stay with, and her home is very comfortable. My room was generous in size and included it's own heating/airconditioning unit - which was very welcome as Perth was having a cold snap. I was welcome to cook in the kitchen and guests have their own fridge and cupboard space.
Perth city is an easy train trip or drive away. I caught the train to Perth and on to Fremantle which was a relaxing option. You can either drive to the station and park ($2) or catch the bus to the station. There is a shopping centre close by and Joondalup is a short drive away.
I felt at home with Carmen and would certainly recommend staying with her.