We're on the Harmony of the Seas early January 2024. I bought the UDP for our 7 Night Cruise early April 2023 as it was 50% off. I checked back a couple days later and the RC website said and still says the UDP is Sold Out. Our price was $266 per person and this included the 18% gratuity. I highly suggest that anyone who wants the UDP for their upcoming cruise and sees a good sale price to buy it ASAP. Then watch for the Black Friday Cyber Monday Sales and see if you can get it for a bigger discount if still available. Good luck!