The double loop trips made seeing Sydney really easy and fun. We had great weather, so sat up top for good photo ops. We did the first loop out to Bondi beach when we arrived in late morning after a long flight from USA. It gave us a perfect overview of the area. Then the next morning we took the city tour and started our own tour on foot from one of the stops. We didn't need the second day that we had prepurchased though, because 1 day on the pass is 24 hours. The only disappointment was that we could have made better use of the pass if the bus ran in both directions. Getting from point B to A mean you had to make the whole loop via point C, and that took too much time. All in all, great way to see the sights. We have also used the Viator tickets in Vienna for the canal boats, and Rome for the buses. The prices are much better than local rates.