I was on PA II and while not the highest ice rating, it is an ice-breaking ship. We broke ice sheets fronting glaciers in Svalbard (80 degrees north) and were flying through a broken ice field one day with growlers bouncing off our hull at surprising speed.
She is a tough little ship that was built for ice cruising.
I am the editor, but I also speculate, ask questions and play devil's advocate. I reserve the right to change my mind.