Both of the last two trips, I have not been able to enjoy actually using the elevator key received in the concierge materials (this was for the YC, but the concept is the same). Last year, I misplaced it at the time of check in, so the bellhop just took us up. This year (in Feb), we arrived late, so the concierge check-in was closed and I had to check in at the front desk.
Nevertheless, I fully understand your excitement at receiving those materials. Enjoy your trip!