The key is really not worth it unless you are solo.
people all try to say oh well it was the same price as the Internet or maybe a couple dollars more. They do not understand that if you purchase the Internet under one person with multiple devices, it comes out cheaper the more devices you add to one person. Getting on and off the ships nowadays are so fast you do not need the key for that as far as shows on the bigger ships it’s still of no advantage you still need to show up 20-30 minutes before to get your seats, whether you have the key or not. If you want to give money to Royal, they love it go ahead and purchase otherwise it’s not needed.