We did get off the ship earlier than expected. 8am I called and asked if they could come any earlier and they said no - at 9. At 9:20 they finally arrived. The other two in our party actually left their luggage with us and walked! When they finally came - he wanted to charge us extra for their suitcases until I clarified that we had paid for them and they didn't wait! There were tons of other taxis and shuttles - that if we had known we would never have booked this. You may want to look at another vendor.
The driver who according to the voucher should have picked us up at 9 am showed up at 9:35and informed us that we are not on his list and have to wait for the next bus that will arrive shortly. We 4 people and another couple who were waiting with us and received same response decided we will not wait on the pier for the next shutle to arrive after having waited for 35 minutes already. We hired another person who took us to our hotels in Sydney and paid twice for the same trip. Viator is expected to choose its operators more carefully and not expose us to fraud.