Karen's apartment is in a terrific location for anyone wanting to get around Melbourne easily. The trams are right around the corner or down the street, and it's easy to walk to Federation Square. The IGA is a block away for groceries and there are plenty of great food options around. We weren't bothered by the noise from the trams or the pub, they quiet down about 9 p.m. but it did get pretty hot, and the a/c doesn't really reach the bedrooms.
Karen was really helpful and gave us tips about nearby places, which came in handy when one of us got an ear infection and needed to see a doctor. Would definitely recommend for someone who wants to be in the center of the city.