All I can say is be fully aware of the charges before you reserve and complete a session.
Last year I made reservation for a couple treatment well before our cruise. If I recall correctly it was listed as "Couples Full Body Message 50 Minutes,"$239.00 bucks or so.
On September 26, 2019 had the message performed at the lotus spa on the Regal princess. The message was pretty good and considering the venue, I would say it was probably worth $239 as a couple.
However, the upsell to lotions, creams, and other un necessary expensive products was constant, and got prett