First time cruiser on Oceania. Ship was beautiful, accommodations very nice. Did not go for the concierge level, glad we did not...no real benefit, as you are not on the ship that much and we booked our own excursions prior to boarding.
Outstanding crew and service throughout! Food in specialty restaurants was outstanding, especially in Red Ginger. Food in Grand Dining Room was good, but did not compare with the specialty restaurants.
Entertainment in Horizons Lounge was the same every night, got a little boring...Shows in the Riviera Lounge were of little interest. However, if you are on this cruise you are there for the ports, not to spend time on the ship...entertainment is not the deciding factor.
More than adequate sized room. Nicely appointed, larger bathroom than expected. Clean, always fresh. Enjoyed sitting on the balcony in the early evening.