My wife and I picked a very port intensive cruise (13 ports)on the Seven Seas Mariner due to its itinerary and time of the year (to avoid the crowds, heat and children). We used Regent's air deviation dept which worked out well -- being able to arrive in Athens in the morning to see the city and having a nonstop flight back from Rome to Charlotte, NC.
The flight from Charlotte to Athens on Delta (connecting at JFK) went smooth (great to be able to use Delta's Crown Lounge for the layovers) and arrived early in Athens Sunday morning.
We booked a Seven Seas Aft suite as my wife likes the separate bedroom and very large aft deck. As a result Regent upgraded our suite at the Hotel Grand Bretagne which is located right across from the Parliament Building where all the riots have been taking place (fortunately none when we were there).
Great cabin - safe location and drawers should be moved to other side of closet, do not select cabin with tub/shower arrangement -- go with only shower arrangement, great aft deck, sewer gas smell -- overall -- probably the best cabin on the ship if not needing 2 separate bedrooms.