I have been to many Steak n Shakes around the country.
1. They are all slow (as compared to fast food). I would consider them along side other fast casual places.
2. They are more expensive than fast food. While we are getting the same items - Cheeseburgers and milk shakes, they are made to order fresh.
3. Food is good. I have never had a bad meal.
I went thru the drive thru and ordered a Double Bacon Cheeseburger, small fries, and a Cinnamon Toast Crunch Milk Shake.
The wait was long - I had to pull up and wait with 3 other cars. Each order (I was third in line) came out about 5 mins later. I waited 15 minutes.
My food was hot (thus made fresh), my milk shake was cold.
Burgers are thin (thus the double). They sear was great (I like a thinner burger with more surface area vs a thicker burger when cooked correctly). The fries are really thin - reminds me of potato sticks I had as a kid. The best fries.
There milk shakes are always on point and take the longest to make. They do not have a "shake" machine. I believe they are all hand made. Their new cereal flavors are really cool. I had something similar in NYC. The Cinnamon Toast Crunch is (I believe) a Vanilla Milk Shake with some cereal blended in for flavor and then added on top. It tastes as you would image.
Summary:
1. Wait was long (I was in my car) and was not warned. It did not bother me as it did for others that were more sensitive on time.
2. Food quality was great / expensive. My meal was over $10.
3. New Milkshake flavors get a high mark in my opinion. A list of their flavors - https://orderonline.steaknshake.com/o/restaurant/18394/group/32826
3 stars due to the wait :-(