I did not stay at this hotel. We stopped here for lunch on the Gray Line Deluxe Hoover Dam tour. My reviews is just for the decor and buffet.
This place seems very low budget. Older and not maintained very well. Walking into the Fiesta, I got the feel that they place has not been updated since the 70's. It smelled of damp and cigarettes.
For the price (which was $7 for people just eating there, it was included in my not so Deluxe Gray Line tour), the buffet was fine. It was fast food and comfort food. . .mac and cheese, pizza, hamburgers, hot dogs---most seemed to be frozen items.
I am giving this place three stars because despite it's flaws, the staff could not have been nicer. Everyone was very happy and positive. They made you feel very welcome.