Hi snilan, we did Adventure out of San Juan this April and had a great cruise with fantastic weather. I personally would not purchase a water package (really didn't know there was one) as water is available pool side and we were never charge for it there. Also, my wife has an insulated water container that she always filled up when we were headed to the pool or off ship as the water on board is as good as bottled to me. We don't utilize the soda one as we would drink enough to make it worthwhile. We prefer to purchase our wine as we want and if a bottle is not finished it will be brought back to you the next evening. We generally purchase one or two bottles and/or we have just purchased a glass or two perhaps on two evenings. Sooooo many choices.
I know one thing for sure, you will enjoy this ship.