My wife and I have been on numerous cruises, all "Large" ships. This was our first experience on an Oceania ship and it will definitely NOT be our last.
The pre-cruise documentation was excellent. All papers, directions, instructions were clear and concise. I was able to book the shore excursions on-line before departing and that saved a lot of hassle. We had been planning this trip for about 5 years but, because of various reasons, had to keep putting it off. I knew that I wanted to participate in a lot of the shore excursions and when I chose the one's I wanted I found that for about $50 more I could have an excursion in every port, perfect!
The cruise package included air connections from Miami to Istanbul with a lay-over in Heathrow, and reverse from Athens. There was a bit of a long layover each direction but it seemed that all travellers had some delay. Once we arrived in Istanbul the transfers and luggage handling were superb.