Guy Fieri is not only a good chef, but also the world's greatest food connoisseur. Just check out clips of his tv show: Diners, Drive-In's and Dives.
I don't think he runs the Vegas restaurant; they just license his name and use his recipes, but some consortium handles the actual operations. So it might be him, might be the people running the place.Guy is pretty entertaining and is really selfless and cool but I ate at his Vegas restaurant once and it was really bad. Either his recipes are trash or he doesn't train/vet his chefs enough.