I was looking forward to the Sirena. I have sailed on the other three R Ships of the line.
I was NOT disappointed. I booked solo in a consierge cabin on the seven deck. The same room I always get on the other ships. Perfect for one and a terrific staff.
Food was marvelous at all meals. I ate many times on this cruise in the MDR. The waiter I settled on was "Spike" who provided outstanding service and really looked out after me.
R Ship cabins are small but with adequate storage and divine beds. Good desk and comfortable couch. Baths are small but worked out well. Wonderful outside deck.