First try with Shake Shack, and it will be our last. Horrible customer service. We placed our order on the Shake Shack app and arrived 5 minutes early for pick up. The crew behind the counter all but ignored us when we came in to pick up our food AND left half off the order completely out of the bag - we had to turn back around and spend an extra 20 minutes in the car because of their mistake. Tried calling (multiple times) on the way back to let them know what had happened, but no one ever picked up the phone. Don't order to-go from this location!
*UPDATE - to put the icing on the cake, the service girl behind the counter rolled her eyes at us when we asked her to remake the food so we could actually enjoy it.