Professor Chris Hayward, a cardiologist at St Vincent's who led the observation of the patient after surgery, said this artificial heart can change the course of how heart failure is treated.
In 10 years, he said, it would be an option for those who can't wait for or receive donor hearts.
Professor David Colquhoun from the University of Queensland also welcomed its success as "a great technological step forward," but said it has a limited life compared to donor hearts.