Was starving when I came here so maybe my review will be a little biased.
Ordered the ShackBurger, the cheese fries, and a vanilla milkshake. I ordered two burgers (one for my friend) and the total was $22.
I thought the ShackBurger was sooo good and the cheese fries also great. The vanilla shake was also super good. Honestly I was just amazed and this is coming from someone who loves In n Out. I don't really believe the two to be comparable because it's different tastes in a way but I guess Shake Shack is ridiculously expensive for what it is. I also finished everything really quickly (small portions).
If anything it's a must try for Vegas and they're going to open one soon in LA and I will definitely be checking that out!