We did...................
Just cancelled our December Christmas cruise and rolled it into early march. If all goes as is planned our cruise would be one of Princess' first cruises out of the hole and we just weren't comfortable that everything that is supposed to be in place really is. Not uncomfortable with the ship itself, everything is going to be as clean as the driven show, it is what's around it that concerns us, airlines and hotels to deal with, no matter how well planned the boarding process is, it will only take one slip up to as Spikesgirl says "put everything in the toilet" so decided to give it a few month to let them make sure they get all the I's dotted and the T's crossed.
Besides our Princess guy got us a really great deal with the same itinerary, same cabin, but with the plus package thrown in, that is free medallion internet, free drink package, and free paid gratuities plus dropped the price of the cruise about $250 pp.
Then what really clinched it was our air. We had air that was left over from our cancelled April cruise that the ever benevolent AA generously allowed an extension till the end of 2020 before they took the money and ran. Wife heard a blurb somewhere that there must have been some pressure somewhere and they were going to now extend the affected cancellations into 2021, she called got a confirmation, not sure of the details, all I know is now we are not going to have to throw $600 down the proverbial toilet