"According to the data, 35 percent of customers who have used third-party delivery say
they have experienced a problem with their orders. Seventy-six said the restaurant was,
at least partially, to blame for the errors. Ninety-two percent said they expect food deliveries within 15–30 minutes of placing an order.
Jimmy John’s added the largest delivery services average close to a 50-minute delivery time."
Jimmy John's: We Will Never Use Third-Party Delivery - QSR magazine