Super impressed with how fast these guys move, especially when there's a ridiculously long line.
I wanted to go here to try the vegetarian cult-classic grilled cheese and animal style fries, and was not disappointed. That said, it really was pretty analogous to Five Guys veggie sandwich, so I dunno that I'd go out of my way to get it again.
One bummer: very difficult to walk to from the strip. Make sure you are on the south side of Tropicana before attempting, and you should be ok.