The Independent Transport Safety and Reliability Regulator (ITSRR) has released the results of their survey of bus users in Sydney. In general, the results show very high levels of satisfaction, over 70%, for all the things that they asked about except one. On-time running was around 60% satisfaction because of more dissatisfaction with the Sydney Buses (mostly buses nearer to Sydney city) running not according to the timetable. Interestingly, the private bus operators, including all the Western Sydney operators, rated well; better than Sydney Buses for on-time running but worse for having timetables on bus stops.
You can see the report here: Bus Users Survey
You can go to the ITSRR website: www.transportregulator.nsw.gov.au