My husband and I were on Oceania Marina for the Baltic cruise a few years ago, so we expected similar experience this time even though it's a different ship. Somehow Sirena did not turn out as good as Marina.
Even though Sirena was refurbished two years, it still shows some wear and tear. The bathroom is a bit small. But the bed and pillows are very comfortable.
Food in the Grand Dining Room is not as good as Marina, so are the Specialty Restaurants. Red Ginger is a disappointment as the food is too salty.