Yes, we took the Aussie Mermaiden cruise.
We had never been on a cruise before as I really didn't like the idea of kids running around, so not having this was the trigger point for us booking.
The restaurants you book via the app are 5 star, just incredible fine dining. They don't have any buffets, which I also loved (table service).
The service from all the staff was second to none and they couldn't do enough to remember our names and help whenever we needed it.
The gym equipment is the best of the best, latest Technogym.
Highly recommend buying bar tab credit in advance and if you are Gold or Platinum Velocity, getting the status match done for some extra benefits under Deep Blue Extras.
I'd recommend booking the entertainment in advance as they book out and are just spectacular performances.
We stayed in a Sea Terrace room which has a nice balcony view.
We've already booked out next cruise with them for NYE in 12 months time.
On a side note, our cruise had Richard Branson on board, so it was nice to meet the man behind the brand