Never cruised Oceania, but sailed on Azamara Journey & Royal Princess.
The Royal experience was similar as any other Princess ship, except a small ship. The Journey experience was much more attentive to pax than their sister companies, RCCL or Celebrity.
A few examples of extra attention on the Jouney was:
1. On another website a meet & mingle was planned as is on most ships. But the group got together 3 other times, the ship provided drinks & hors divs each time.
2. My Wife enjoyed sushi one afternoon in the buffet. We wanted some on another day and there was none. She inquired about the sushi and was told they do not have it on the buffet every day. The buffet manager overheard and asked for our cabin #. We had sushi delivered to our cabin every day for the rest of the cruise.
3. We got friendly with a couple who were going to one of the specialty restaurants that night and asked for us to join them. Tried to made reservations but was told the restaurant was full. As we walked away, one of the staff officers asked us how everything was going. We told him we were disappointed we could not join our friends that night for dinner. He asked for our and friends cabin #s. The 4 of us ate together that night in the specialty restaurant.
4. By the 2nd night, the casino manager knew my Wife by name. Not sure if that is good or bad.
As far as the price comparison by Paul, it appears that apples were mixed w/oranges. Paul should do a comparison that includes air, transfers, tips, wine, specialty restaurants and Princess will still be less expensive, but the extra pax attention may be worth it.