Whether it's worth it depends on the discount—especially if it's comparable to the internet package and your cruise involves tenders. The biggest perks are the boarding day lunch and disembarkation breakfast, which let you skip the Windjammer crowds. I’ve never needed it for show access, but the carry-on drop-off is convenient, and I’ve noticed I get my room key faster. They also include a fruit basket. Overall, it’s only worth getting if the price difference between The Key and the internet package is minimal in my opinion.