We sailed from Valparaiso to Tahiti in January 2016. This was our first Oceania cruise. I doubt we would sail with Oceania again. First thing was their loss leader concept on their brochures. Advertise a low fare and when you try to book that fare, it's long gone. I just don't appreciate that in a company.
We picked this cruise specifically because of the itinerary. Mainly Easter Island and Pitcairn Island. When we got to Easter Island, the boarding process for the tenders was a complete disaster. We are independent travelers and we had a car rented for the first day on the island---fortunately the first day because the 2nd day was cancelled due to swells. Because all Oceania tours were allowed to board tenders first, it took us 2 1/2, yes 2 1/2 hours!, to get to the island on a tender. We had to call our car rental company from the ship to tell them we were going to be very late. It all worked out fine in the end since we saw most of the island. BUT, Oceania did a terrible job administering tender tickets and boarding.
This one experience would keep me from using Oceania again. We found out later that here is a 50+ % chance of not being able to go to Easter Island at all because of the tender situation. Of course this wasn't mentioned in any of the literature when booking. Think about booking this 'trip of a lifetime' and finding out you couldn't even see Easter Island at all. The rest of the trip was pretty uneventful. Pitcairn Island, where the islanders visit the ship, was great. Very neat experience meeting direct descendants of the Bounty mutineers. This was definitely the highlight of the entire trip. Visits to two atolls in Tahiti plus Bora Bora were very nice but not the point of this particular cruise.