This was the best fast food stop we made in Vegas. Well, I guess this would be more of a "fast-casual" place. You order up front, then someone brings the food to your table, and the place is more nicely decorated inside.
"The Natural" burger uses antibiotic-free meat. Normally, a "healthier" place that tries to make a burger will screw it all up - there is a place in DC that tried it and the burgers tasted like wood shavings. Not here, "The Natural" was a great fast-food burger.
Prices are a little higher on the fast-food scale but you pay more for higher quality ingredients. Would definitely visit again, hopefully they expand East.