Location, location, location - as well as a wonderful home away from home. Matt's place was clean and tidy and fully of lovely artwork and photos. He always responded to texts and emails very quickly and when I had some trouble accessing an attachment to an email he happily provided a follow up email cut and pasting the text required. His home was very quiet and moments away from good coffee shops, supermarkets and bars of Brunswick Street and Gertrude street. There are plenty of trams nearby to get you around too.
I would highly recommend staying at Matt's place and would like to stay again on another trip to Melbourne.