Last year we had no problem getting thru SS--BC PHL to Athens direct flight and same back plus the flights to and from Raleigh. This year thru SS we are flying to BCN and back from FCO and received the requested Non stop flights in BC from and to Charlotte so nothing but great things to say about SS upgrade to BC --but that may have as much to do with a terrific TA than SS!
We have sailed Seabourn and O and much prefer Silversea. There is a relaxed atmosphere that surrounds upon check in and stays to disembarkation that can only be experienced-not explained. We have no complaints with either O or Seabourn but just plain prefer SS. oh btw-- the bathrooms are much nicer on SS and so are the cabins in general.