We sailed on the Preziosa the first week in January. The ship was first class, very clean and well maintained. Our room (balcony) was a nice size, comfortable and well furnished. Security was tight which was comforting.
But be prepared for extra costs, everything has a fee, including a glass of water with your dinner.
The food was mediocre and so was the entertainment in the theater. We encountered several staff members who were rude and had no sense of customer service, although others were top notch (especially our waiter).