Although, I love that they use grass fed beef, the pattie was slightly over salted. The bun had good flavor but was a bit disappointed they don't offer grilled onions. The Shack sauce was tasty. A bit pricey compare to other burger places but I chalk it up to using grass fed beef. The french fries were just a bit average...I did like that they were crinkle cut. Being that I went to the location in Las Vegas on The Strip... it was pretty crowed and hard to find a table for my family. I basically had to stalk another family that looked like they were almost done. Staff was quite friendly and the establishment was clean. They have a big screen and plenty of t.v.'s if you wanted to catch a game and have a burger.