Ha! I always drive. It was a tongue in cheek jab at the future obstacles that a Sydney transport user faces, more so from an interstate perspective. By the time the new airport opens I doubt I will have a legitimate reason to be ‘be back in town‘ - so to speak. I will always love Sydney, best city in the world.I'd drive if I was you.
The metro from N-BW won't take you to Gadigal.
I hope you like St Marys though.