Arthur, check out the floor plan of the Voyager Penthouse A on the RSSC website. It is only 14 square feet larger than the standard cabin. Of course, if you require a butler, they are only available in Penthouse B and above. The Penthouse suites are much larger on the Mariner, and would be worth the extra fare.
The absence of balconies is the one thing that keeps me from booking with Seabourn. But I hear many wonderful things about the line.
