This was our second cruise with Oceania - both on the Marina. (This was my 12th cruise overall.)
This is a beautiful ship. Still very well taken care of. No real signs of aging anywhere. They take very good care of it - especially in high traffic areas.
The front line staff are amazing. Very, very friendly and many recognized us from our last cruise (8 months prior). They really do whatever they can to make sure you are happy. That being said, I didn't find the officers or supervisory staff (maitre d's, etc) to be friendly at all. They were very standoffish. I had an issue and needed help from the Oceania Club Ambassador. As soon as she found out I wasn't there to book a future cruise and had an issue with the program, she lost all interest in me. (We had sailed a few times with Azamara and found all their officers, etc to be amazingly personable. They would never walk past you without saying hello or starting a conversation.)
Great location. Close to elevator and stairs. Executive lounge just steps away. Quiet - but underneath the smoking lounge. Couldn't smell smoke on the balcony but could hear chairs being moved around on the deck every now and again.