Chose Oceania because of the itinerary (combination of Baltic Sea and Norway) and reviews. The itinerary was perfect. All ports were very interesting and added to our knowledge base (not one "bad" or "boring" port.)
The ship itself was perfect. Calling it "ship shape" would be doing it a disservice. Every inch of the ship was spotless, had beautifully decorated public rooms (including the bars), and was decorated with modern art (all over!!)
Food was wonderful. Got to eat in each of the 4 specialty restaurants twice. Toscana was our favorite with Pepin's and Red Ginger a close second. The Polo Grill needed help with service. We are not buffet people but with the choices and special evenings at the buffet, we ate more dinners in the buffet area than the main dining room. In Vegas you would pay at least $50 per person for something like Marina's buffet. By the way, sign up for the galley tour - fascinating!
Wonderful in every way: cleanliness, large walk-in closet, large bathroom, nice sitting area for morning breakfast, and large enough balcony.