Will I really use the facilities (that is really what you are paying extra for)? I do not expect privacy when I am outside or in public areas. The folks on the public decks right above you can see down on your balcony and you can look up and see them too. I did not having any issues with it though. The other poster is right about the balconies not being private. I used the facilities every day and each evening I used the large showers in the spa area locker room to get ready for dinner while the others took turns bumping elbows in the cabin. The first two people in the room get the use of the above at no additional charge. If you are going to take advantage of the spa.the saunas, steam rooms, heated loungers, thalassotherapy pools, relaxation rooms and the excellent showers in the locker-room area of the spa then yes it is worth the extra cost.
It was literally just around the corner from the spa. This is the very most forward room on the 12th deck.