Burgers are okay, similar to in-n-out. We had the shack stack that has a fried portobello in it. The surprise was the melted cheese from the fried mushroom dripping out as I bit on it.
The chicken sandwich is also good, the meat is tender but the portion is very small.
Cheese fries is so so, I would rather have an animal fries from in n out.
The shake has no size to choose from and a $5.50 shake is too expensive.