Great Yelp discovery in Vegas.. the service was terrible because we kept being passed from one server to another and finally couldn't find anyone to request a check for 15mnts before we went up to the hostess.
The veggie burger was actually pretty good - it was homemade with mushroom, bread, rice and some other vegetables. We had it on the onion bun and liked our combo. Also, the veggie burger was only $9 (unlike some of the $22-24 burgers in some reviews here).
We did try the sweet potato fried and definitely lived up to its hype. We also indulged with a Nutella milkshake but with vanilla icecream (it comes with chocolate icecream otherwise) and liked it lots.
I'd say if in the area, try it out. Not something to make a trip for though.