Thanks for the info Neil.
I did forget to say it would be via RCI.
I've used them a few times now.
The one I'm looking at would be trans atlantic from Lisbon to Brazil, and there would be at least 5 of us going. So we're looking to spend quite a bit of money.
One down side of waiting until Nov, when we're on the cruise, is having the choice of suites, because it's trans atlantic we'd want to be low and centred. Yes I've done trans atlantic before.

So I'd be nervous we wouldn't get a large a choice, if that makes sense.