We traveled on Star Princess from Vancouver to San Francisco in October 2017. It was our first time on Princess, and I doubt we will cruise with them again. This is mass-market cruising, and although they have a few high points, for the most part the experience is middle-of-the-road.
Pros -
Our cabin was compact as expected, but well laid out, with a large amount of storage space and plenty of closet room and hangers. Steward service was excellent, and the bed was very comfortable. No complaints here.