One more thing
I guess nobody really cares for the Marriott just behind the Circular Quay?
TripAdvisor reviews overwhelmingly raved about the location. I can understand that especially for the first visitors.
Rooms seem outdated. Lounge is at lower floor what I read. I am more interested in the quality of the lounge offerings. Reviews seem to be very mixed. But I gather it has not the same issue as at SOTP where you cannot self-serve even for water. That is quite unreasonable.