Not for nothin', but our cabana experience on the Nieuw Amsterdam (December '22), was so incredibly bad that I actively dissuade my clients from booking it, with an explanation of how poorly the whole debacle went. I had high hopes that my Daughter's cruise (with retreat cabana) would go better, but THEY had problems too.
It's bad. Bad-bad. I do not trust their ability, or even desire, to properly administer the cabanas. Premium price should equate to premium service, and ours was just...no. Never again.