As a 300,000-mile-a-year traveler, it's my opinion that this is one of the finest business hotels in Sydney, if not the world. The space itself - the old GPO - is spectacularly renovated, and the location is superb - right in the heart of the city without being overwhlemed by (Circular Quay) tourists. There may not be a more pleasant (business) breakfast restaurant, occupying the light-filled atrium space as it does (and I am NOT ordinarily a fan of business buffets). MUCH bigger rooms than the nearby Hilton. It's not cheap, but if you've got the budget, there is IMO no better choice.