I have traveled throughout the East and South. Never have I found a better hamburger than at Steak 'n Shake. It is consistent quality, no matter what state you are in. Their sides are sometimes lacking. I do like shoestring fries, that isn't the problem. The sides are simply average. Of course, the chili is extremely good but fried, baked beans, etc. are not to the same level of quality that the burgers, chili and shakes are. However, overall, I have NEVER had a bad experience at a Steak 'n Shake. Service is always prompt, restaurants clean, people friendly. Not to degrade McDonald's, Burger King, Hardee's and that type of restaurant but they are not on the same level. Not to say that there is anything wrong with fast food (certainly I eat it) but to compare Steak 'n Shake to a fast food restaurant would be like comparing Outback Steak House to a local street hot dog vendor.
Cons: No big tables for large groups.