Gustavo's place cant be more centrally located. It's on a massive tower of flats. 5 minutes walk to southern cross station and to the skybus stop to/from the airport which is sooo handy. You pick up the keys from a store that is 50 meters away from the flat. Excellent communication with the host and he was very responsive. Shops and restaurants and supermarkets around the corner. Within the free tram zone and many tram options to move around. Location-wise, more than excellent!!!
Nice bedrooms too. If you are staying for couple days in Melbourne, I would recommend.