Meg -
I think what you're referring to is the Club level. From reading other posts: They offer free soda/beverages during the day, a contintental type breakfast, beer/wine in the afternoon/evening, and snacks in the evening. If you look at some of the trip reports I think there are details about what was offered.
Regarding concierge, all three on-site hotels have a concierge desk open to all guests, not just those staying at Club level. They can help with preferred seating, tickets, and general questions.