Brought the Key for our 3 day Freedom of the Seas, curious but also was only $2 more than internet zoom. Lunch was nice in the dinning room as being a three day cruise, there were a lot of groups who can overwhelm a Windjammer. We carried on our luggage for the trip so it was nice to pass those off with the Key group and have them available to use when we checked into our room at 1:30.
We were also concerned with overcrowding at shows and didn't want to hassle with finding seats. However, finding a seat if you got to the shows 10 minutes early was not a problem. Not sure if this was because it was a three day cruise or what. I do know that having the KEY on the Odyssey or Oasis ship would have been beneficial and would consider the KEY on those ships if the price was minimal.
Breakfast on departure day was nice, no Windjammer Group party and having our luggage available in a special area. Downside was, once you enjoyed your breakfast you disembarked with the masses, no advancement to the front of the line, which wrapped thru the dinning room, out onto the outside deck.