We have long wanted to cruise the Eastern Med and in particular visit Ephasus, so when we saw a 7 night cruise on Queen Victoria, a favourite ship, embarking in Athens and disembarking in Venice & calling at Santorini, Kusadasi and Katakolon, we jumped at it. We booked a P2 stateroom on deck 4 which has the larger balcony. In the event, unrest in Turkey meant that Kusadasi was substituted by Sarande in Albania - not in my mind an equitable swap but we did not let it spoil our voyage.
We flew to Athens a couple of days before the cruise and stayed at the Athens Hilton which was fine. We found Athens to be lacking in civic pride and covered with Grafitti, which is perhaps unsurprising given the political events and problems of the last few years.
We had a private transfer down to the ship in Piraeus and enjoyed the fastest embarkation I have ever experienced. We were aboard 5 minutes after arriving at the terminal. Our luggage was in the cabin 15 minutes are that. The P2 cabins on the QV have been well described elsewhere so I will not review them other than to say that there is no light over the bath so one showers in the dark - annoying but otherwise they are very comfortable.