This is located in the Forum Shops in a middle stand, so you can't miss it. I come here only for the gelato. The large is their best deal so I suggest getting that and sharing with someone. Every time I've come, they've been more than happy to let me taste as many flavors as I wanted with no rush.
My favorite flavor is the pistachio because it's really strong AND there's chunks of pistachio in the gelato as well. Always creamy and smooth. Love the wafer they top it with as well. Great treat to cool you down on a hot Vegas day :)