This morning I was irritated to learn that the Hilton Checkers in downtown Los Angeles did not allow me to upgrade my continental breakfast coupon (good for coffee, juice, and breads, and maybe yogurt) to full breakfast. If I didn't want the waiter-served continental selection, my Diamond breakfast amenity was near-worthless. The front desk didn't see a problem. I mentioned that complimentary water bottles had also failed to make it to my room, even after special request. I then insisted on a special arrangement for breakfast, which was finally made: I received a yellow coupon good for full breakfast, normally provided only to package guests. Do any other Hilton Family properties refuse to allow you to buy up to full breakfast, assuming full breakfast isn't already free to elites? Let's name some names.