Yeah I've stayed Concierge level at the Yacht club 10 or 11 times. It's amazing! You have a private lounge (you can only access concierge floors with your key card). In the morning they do several different cereals, oatmeal, bagels and various pastries, coffee, tea and juice. They also have out some fruit as well and water.
In the afternoon they do a snack. The snacks vary but its usually pretzels, goldfish, cheddar popcorn and pudding. There is also fruit, vegetables and lots of things to drink. There is always water, soda and juice available all day.
Around dinner time there are usually two entrees that they bring up from the restaurants at the resort. There is also always some type of soup or chowder. There is also bread, cheese, veggies and fruit too. The same drinks are served at this time.
After dinner there is a desert and cordials time. They serve alcohol (if you are of age that is), and desserts such as pastries and chocolate covered strawberries.
It's an awesome lounge, and you're going to have a great time! If you have any questions pm me!