Very good base to explore Sydney, close to the world famous Harbour Bridge and a 2 minute ferry trip to the Opera House.
Vibe North Sydney is located close to the Harbour Bridge on the north side of Sydney's Harbour. Milson's Point Railaway station is a couple of minutes walk (next stop southward's is Wynyard Station, 2 minute ride, is right in the heart of Sydney's CBD). You can also walk over the Harbour Bridge (15 - 20 minutes). Plenty of restaurants, shops and bars are located nearby.