Insanely slow among other things.
Over the course of 3 weeks I have had horrible service at this Sonic. First I am ordering for a large family of 6 people. Both times orders were wrong. I'm not talking a missed drink or wrong sauce on a burger. We were missing entire food items which with a family of 6 means someone does not eat or I run back to the Sonic. Also both times it took longer than it should have for the order to arrive: 15 minutes and 20 minutes, respectively.
I would not recommend this Sonic and we will not be going back there.