We upgraded to a one bedroom for the November 29th sailing. We were in Family with Verandah Concierge before. Our TA said that with Covid there are some ships where you can't upgrade at Port, but you just don't know until we get there. With the level we were at the different she estimated at Port vs before Port wasn't that big so I just did it for a sure thing. I am already stressed out enough on travel days so just not worrying about that is enough for me. It could be different though if you aren't already concierge and worth trying at Port to save the money for something else.