Previous experience. We have tried several cruise lines but found Seabourn to be by far the best. Brilliant small ships and first class throughout. No loud entertainment just sophisticated shows. Brilliant quizzes. Food outstanding and crew are faultless. They deliver everything they promise. Their house wine list is just amazing, NO cheap plonk! Trips well organized and daily information is excellent. The service to and from the ship is first rate. Overall one of the best holidays we have ever had. Can't wait for another one.I cannot say anymore, I have run out of superlatives. We will never use another cruise line now. We found the restaurant staff great. One was called Cesar so I named him Julius. The others wanted a Roman names. I named one Titus and another Augustus. They loved it . We got Roman salutes each morning.