I wish they had shake shack in Southern California. I know a lot of ppl compare SS to in n out but honestly, SS is way better. I had their smoke shack and it was so good. They had sweet red chile cooked with the burger which gave it just enough kick to get your tastebuds rolling. There is no lettuce or tomato in the smoke shack so if you are expecting that then don't. Their crinkle cut fries were crispy and perfectly salted. If you're a fan of cheese then get the cheese fries. The cheese is not overbearing and your fries are still crispy even though there is cheese on top of them. The decor is modern and lively with lots of seating. The staff is friendly and well managed. I'll make sure to come back the next time I'm in Vegas.