Just finished a 2-night stay at Palazzo last week and we loved it.
Technically it was 2 stays booked with Amex FHR - one under my name and the other under my wife's. This way we received the daily benefits of welcome wine, $65 for breakfast, and a $100 food credit on both days.
There is a dedicated line for FHR reservations. Checkin was quick and a letter was prepared to let us know all the benefits we have during our stay. Guaranteed 4 pm late checkout was almost a must-have at vegas, so you don't have to rush in the morning.
Breakfast at Grand Lux Cafe was really good. French toast was the best we ever had. Generous portion and fantastic service.

The $100 food credit can be used at 15 restaurants and bars. Make sure you make reservations. We tried Hongkong Cafe and Brera osteria.
Dinner at Brera