We have been on about 20 cruises, but this was our first Oceana cruise. We wanted something more upscale to celebrate my wife's 70th birthday. We were extremely disappointed in the cruise.
Several weeks prior to sailing, we were offered an upgrade from a balcony to concierge cabin for $500. We took the offer - big mistake. The cabin we got was 6000, in the front of the ship. Unfortunately it was right over the Sirena lounge, and was incredibly noisy when there was a show, or a rehearsal. Then at night we were awakened by someone coughing in the adjoining room - the walls are paper thin. In the morning it was even noisier when the ship was docking or lowering the anchor. The cabin was a nightmare. We did complain, and Oceana did offer us a cabin in the back of the ship. It, however, had quite a vibration from the engines.
On the plus side, service was exceptional. Food was good, although not any better than Celebrity. We had expected more.