Oceania is a fantastic cruise line, up there with the best. The crew were second to none and the food is of course exemplary. We never had a problem finding sun loungers (despite many shaded sunloungers being reserved every day) and there were many day beds available at all times too. The show lounge is called the Sirena lounge and it is more akin to a bar/lounge rather than the more typical double height theatre that you get on slightly bigger ships than Sirena.
My comments on the cabin are below.
We travelled as a family with four daughters and we were made especially welcome, particularly by the entertainment team who appreciated guests who were more similar aged to themselves!
The ship was run extremely well and everything went smoothly. From the reception staff, the restaurant waiters to the room attendants, everyone made sure that we never queued for anything and it helped make our holiday superb.
The cabin was larger than average BUT please be aware that this ship is 19 years old and whenever we pulled into a port, either the bow thrusters were used or the anchor and its chain were dropped with the resulting noise being incredibly loud!
Also the bathroom was the smallest that we have ever experienced (there was no bathtub) and you could use the shower, wash basin and toilet all at the same time.......
The rest of the cabin was excellent. Lots and lots of other bathrooms were similarly tiny and it was the major complaint on board.