Hotel's official name: Doubletree at the Entrance to Universal Orlando
State/province/country: Florida
Your status (Gold/Diamond) at time of stay: Diamond/Gold
Type of breakfast offered (full/intermediate/continental; see wiki): Full buffet
Taken in restaurant or lounge?: restaurant
Extra options (e.g., upcharge for full breakfast): n/a
Added your report to wiki?: No
We've stayed at this hotel 4 times in the past year. The first was as gold, the others diamond. All points stays. We inquired on the first trip about our kids in preparation for the next trip when they would be there. The restaurant staff said the front desk will state 2 guests for gold, 4 for diamond but in reality they will comp the entire table.
Our family of five was indeed given the full buffet for all three trips (all as diamond, but I suspect gold would be the same). Of course YMMV.
The buffet itself is really nice, especially for filling up in preparation of a long day at the park. Omelet station, gravy, sausage, bacon, scrambled eggs, fresh fruit, waffle maker, pastries, etc. I wouldn't pay the $22 they charge, but as a gold/diamond perk it's pretty great.