First time on Oceania but about 25 cruises under our belt ranging from Azamara, Celebrity, Princess, etc. We had really looked forward to this cruise based on the itinerary (Tahiti) and the Oceania's reputation for excellent food. Unfortunately we found the menus to be repetitive, not too extensive and in many cases just plain mediocre. Indeed, we have experienced better food and choices on many other cruise lines. This was unfortunate as we are our lovers of good food and discerning but not snobbish critics. Even the specialty restaurants weren't that special, with a lot of too rich and over salted items. The steaks in all venues were not the prime one would expect and the lobster, fish and shrimp was usually stringy and either under or overcooked. I guess Jacques was the best but after our 4th visit there, we'd had enough. The Terrace is a nice alternative dining area but again the food choices were skimpy and on occasion quite poorly prepared. Top side by the pool is Waves which could always be counted on for a decent Kobe beef hamburger.
On the other hand, the Marina is a classy, perfectly sized, clean and comfortable ship with large veranda cabins. Our only complaint was that, although only a few steps to the elevator and stairs, we were close to a service door that was constantly slamming shut at all hours. We pasted a notice on the offending door (that came in the daily activity sheet warning passengers be considerate about slamming doors), spoke nicely to a steward and finally mentioned the problem in a nice way to the Reception staff, all to no avail. Not the biggest problem.
We arranged all our own excursions prior to sailing and as so many others have pointed out, these were better and much less expensive than the ship tours.
Spacious, comfortable with a nice bathroom, plenty of closet space and a large balcony. Too close to a service door that was constantly opening and closing and disruptive especially in the morning if you are late risers as we are.