Came around 3pm yesterday. Greet time was slow as well as service: staff definitely could improve on their people skills and smiling because then, wait time wouldn't seem like such a drag. In all honesty, when you go out to eat you don't simply pay for food but you also pay for the experience. Not that Johnny Rockets is a high-end place or anything but that could just be my personal expectations because of my serving background.
Overall it wasn't such a bad experience. The food came out hot and I do prefer to come to this location over the Mandalay Bay location because the food options at Fashion Show are more extensive.