I ate there today for lunch with my girlfriend. It is located in Nichols Hills plaza. It has been a mainstay there for 43 years. We sat at the old-fashioned soda counter and we both ordered a cheeseburger, fries, and a chocolate malt.

The food was overpriced for the quality and size. Quality tastes and is almost exactly as a Sonic burger only the price is twice as much and the size is the size of a kids burger. The fries are the same as well.
The chocolate malt was probably the best I'd ever had though. Defintely a must go to once but not worth a second visit unless for a malt.

I've always enjoyed the food and experience at the ol' drugstore.

At any place like that, the malts/shakes always take the cake.