I had a great weekend in Melbourne and Penny was a wonderful host. The sofa bed is in fact, one of the most comfortable I've slept on as all the previous reviews said!
Penny was really accommodating and helpful and very friendly as well.
The location of the apartment is perfect for inner city exploring and central to everything.
I wouldn't hesitate recommending Penny's apartment to anyone wanting a great inner city experience.
And if you love cats it's a bonus!