We chose Symphony Of The Seas mainly for the fact that it is currently the largest cruise ship in the world, and we really wanted to see Coco Cay which was hyped up to be heavenly...
Let me begin with saying that getting on the ship was super easy once we registered via RC app. The ship itself is really big, and there are many things we enjoyed - zip line, The Abyss, Aqua Theater etc.
The cabins are nice and modernised, with a slightly better layout too.
Ocean view cabin with much better layout than on other (older) RC ships.