We stayed at Hilton Lake Buena Vista in Aug, 2018. and found a MUCH better breakfast than expected. Diamond get full hot and cold buffet with scrambled eggs, bacon, sausage, cold luncheon meats, cheeses, etc. This gratis breakfast is advertised as continental only. The website also says only 2 bottles of water per stay. However, there is a self-serve mini refig in the breakfast area stocked with water bottles and juice bottles to take back to your room. You could also pickup some containers of yogurt or fruit or fresh-baked chocolate chip cookies. This area is not open after breakfast hours, but we were able to be more than satisfied by taking one or two things back to the room for later. We tipped the staff nicely and, as usual, nothing but smiles and blue skies.