Sbarro
Sbarro has been around for 20 years. At first, the chain proved to be very successful, but their revenue started to decline as the years went by. Customers claim the sudden drop in sales has to do with the quality of the food, especially their pizza.
Sbarro has another significant disadvantage – it doesn’t deliver. Most of the restaurants are located in food courts, and since shopping malls are becoming a thing of the past, the chain is suffering. Several hundreds of its locations were closed, including the famous one in Times Square.