My in laws took the entire family 11 in total (2 seniors, 4 adults, 5 children aged 6-13) on this cruise as a birthday celebration.
Embarkation was delayed for several hours to allow for extra cleaning. Once we started to line up to board the ship, the process was seamless and we were on-board within about 45 minutes. Our cabin was easy to find and bags were delivered not long after we arrived at our cabin. The benefit of this was we left Sydney Harbour at dusk and were able to capture some magical views of the harbour bridge, opera house and harbour as we departed.
Ship
It was fine
Slightly cramped when 4 people all wanted to get dressed at the same time, but you don't spend a lot of time in there, and when you did the bed was comfortable, the shower had good water pressure and the toilet flushed every time.