I had done the option as a teen. For adults it is more expensive than for kids. I could use it everywhere. I did find that most bar waiters would always help anyone who was paying for a drink before I could use my card. Also that in the main dinning room I ended up only geting one drink because I had to wait for the bar waiter and they only came around once during meal times. However, if u buy a drink they are always there to sell it.
It was a great options as a teen, but I don't think it is worth it. Plus it is only for fountain drinks.
I bring my small cans of spicy V-8 & diet coke with me & do not need any soda cards of 15% surcharges..Don't mind payting that for drinks or soda outside cabin but not when I just want soemthing while I am relaxing!
My husband always buys the pop cards. They are basically $5 a day. His only complaint is that he can't get a can of Coke. They only serve the card customers with glasses of coke. He hasn't ever had trouble getting his coke from any waiter or in the dining room. Normally at dinner he has 2 and usually asks the waitress/waiter to bring him 2 at a time and he has always gotten them. He also tips the dining room wait person at the end of the week for the service. The only place the cards won't work is room service or the honor bar in the cabin. He usually sits on the deck and gets his cokes while sunning and he does tip the usual waiter there too.