My wife and I have been on four Oceania cruises on the smaller ships. My first impression of the Marina was that this is a large floating Vegas hotel. I learned to love the ship as the cruise progressed.
The embarkation was efficient. We arrived at noon and we were having lunch at 12:30 PM. Our room wasn't ready until 3 PM. There is a class system on this ship. People in higher category rooms have their rooms prepared first. They also get first choice of restaurant reservations.
The layout of the Marina is very similar to the smaller ships. Oceania has tried to keep most things the same as on the smaller ships. The food is very good and in most cases excellent. I had an excellent fillet in Polo, an excellent osso buco in Tuscana and an excellent meso seared sea bass in Red Ginger. The service is very good. The beds are great.
good location mid way between the elevators. It was easy to walk down to the Grand Dinning Room or to reception.