We have travelled both on Oceania Marina ( +1,200 passengers) last year and this year on Regatta (+600 passengers).
On both Cruise the standard of the Cabins , cabin staff, and restaurant staff was excellent, very difficult to improve on this.
The food in our view was slightly better on Marina, a wider choice.
We preferred Regatta as it was a smaller ship and felt it was less jazzy than Marina, of choice would not go on the larger ship again.
As noted the standard well deserves the 5 1/2* as rated.
BUT however then Oceania are determined to take as much money as possible from you when on board.
Excursions are very expensive for example a 3 hour trip from port could cost at least $149 EACH. We adapted our own method of having a taxi, then going for a similar run around on a personal basis ( usu-ally with driver speaking English ) at a total cost of up to 70 Euro. We did this a number of times on this years trip. Last year we tended to hire a car when required around a total cost of Â£75 each day. If one asked the Destination services to book a taxi, they showed no interest at all.
Internet charges are extreme requiring from 99c per minute of for the whole voyage $1,500, this for a slow service of about 1.5mbps.
The opening day of the Olympics was the first day on board. Oceania did not nothing to ensure we could see this, in spite of precruise requests.
The final annoyance was the cost of transfer from Venice Cruise terminal to Airport, Oceania offered this by coach for $139 EACH. We arranged for a booked taxi at a cost of 40 Euro total.
We feel it is a pity that Oceania take this method of extracting money from passengers. WE would ra-ther pay a bit more on the fare and not have the above aggravation. It spoils an otherwise excellent cruise.