Stayed at the Sydney harborside on the Circular Quay approx 1 year ago. Overall a pleasant experience, but we were there only 2 nights.

We were on vacation, but the property seemed geared towards the business traveler. That might have just been my impression.

Positives:
Nice concierge lounge with efficient staff and a fair amount of food variety and selection.
Good location downtown near the bridge, opera house and ferries

Negatives:
Smallish room, no upgrade available

We were able to walk to the opera house and find same-day tickets for a concert that evening. Very enjoyable.