Secondo l’annuale guida Berlitz sulle navi da crociere, l’autore, Douglas
Ward, ha dato giudizi abbastanza severi sulla qualita dei servizi a bordo,
principalmente la pulizia delle cabine ,il mangiare e il servizio a bordo
sono stati i principali motivi di critica anche e principalmente in
 considerazione delle “spontanee mance addebitate”
Queste in cifre i giudizi della guida Berlitz.
                                   La cucina              Il servizio          nel complesso
Carnival                    5,44                               5,66                   5,55
Celebrity                   7,10                               7,46                   7,28 
Costa                        5,54                                5,96                   5,74
Cunard                      7,54                               7,66                   7,60      
Holland America         6,36                                6,94                   6,65
MSC                          6,96                                 7,38                   7,17
NCL                           5,80                                6,24                   6,02
P.&O.                        6,46                                6,74                   6,60   
Princess                     6,78                                7,06                   6,85
RCI                            5,22                                 5,66                  5,44
Star                           5,80                                 5.92                  5,86