We stayed WL concierge in November 2004 and really enjoyed it. Food offerings were pretty good (better than YC, I thought). Morning: Coffee, juice, tea, hot chocolate, muffins, bagels, danish, fresh fruit. All day snacks: gummi worms, goldfish, pretzels, cookies, juice, sodas. Evening: Usaually 2 different hot items (Roasted Chicken and White Chili; Beef Stroganoff and mashed potatoes; etc.), veggie tray, cheeses, crackers, PB&J, all the drinks. Evening Cordials: Beer, wine, Bailey's, Kahluha, Brandy, Cognac, Brownies, cookies, and other desserts.
We ate breakfast every morning in the lounge before heading out for the day. Four out of our 6 nights we were also able to utilize the lounge offerings for dinner (after we had a pretty big sit down meal for lunch). Remember, you also get the added benefit of having a staff of CM's to do all of your pre-planning ie: book PS's, specialty cruises, personal shopping, etc. This is definately a nice feature. Takes a little bit of stress out of your vacation planning.
Hope this helps.