Staying concierge gives you access to the Craftsman's Club on the 6th floor which is open from 6:30am to 10pm and also gives you access to the Club Patio on the 5th floor. In the lounge continental breakfast is available from 6:30am to 10am (cereal, fruit, pasteries as well as juice, tea, coffee etc.) Lunch is available from 11 - 2 (I think these times are correct). They usually have sandwiches out uncrustables in packets as well as fruit. At dinner time more snadwiches and snacks are available (Mickey crispie treats, scones etc)There is a wine & cheese reception from 5pm to 7pm. During the day you can also go into the lounge as many times as you like and each visit you can take 2 bottled drinks per person out of the fridge. There is also complimentary beverage service in the Craftsman's Club throughout the day (coffee, tea, juice and soft drinks). The lounge also has a balcony on it where you can watch the fireworks from and they pipe the music in as well.
Concierge guests also get nightly turn-down service, a DVD Player in each room and complimentary movie rentals.
Concierge will also make any restaurant reservations you would like to make whilst staying there (but don't forget anyone staying on site can use the vacation planning service before they arrive.)
I hope this helps. I haven't stayed there yet, but we are staying there next year and this is the information I have found out whilst doing my research.