Just returned from my 16 night cruise on the Sirena. It was fabulous. Great service, food, accommodations, entertainment. I had sailed Athens to Rome last year on Sirena. It was great to be back on a familiar ship. The staff is wonderful, friendly and accommodating. The food great. The two specialty restaurants (Red Ginger and Tuscan Steak) were very special. Particularly great service and attention there. But any restaurant was also great. The entertainment was varied - from modern, to classical, to comedy, The production cast of six young entertainers was exceptional and glad they had four shows. I did not take any offered shore excursions and went ashore and toured around on my own with three friends I was traveling with. A couple of days we encountered rough seas and the staff was very solicitous, always available to assist at the buffet with plates and an arm to get you to your table. I would definitely return to Oceania and Sirena.