Happy Tongue! But first, the hours:
12n - 10p Weekdays
12n - 11p Weekends
I did get the impression that they would stay open as long as there are customers, and there should be a constant line of customers.
Like others have said, the customer service is beyond excellent. They go above and beyond what is expected to make sure you understand what you are getting and what they have to offer. I think 25% of the cost of the gelato goes toward sampling spoons!
The flavors are all extremely good and inventive. The dark chocolate is like brownie batter. The white coffee bean is the best version of a cold cup of coffee I've ever had. Hazelnut goes great with those two. The sweet corn is so subtle yet very flavorful and savory.
What is really fun is seeing 3 families huddled over the display cooler, and sampling away and discussing the flavors.
Do not pass this up! Awesome flavors, great owners, phenomenal experience. Thank you Chef D for bringing this to Vegas!