Taco Bell says that low-income customers are still flocking to its restaurants even as other fast-food chains say they're struggling to hold on to them

• The CEO of Taco Bell's parent company said the chain was doing a "great job" of retaining low-income diners.
• Demand for Taco Bell's revamped $3-and-under value menu is higher than expected, he said.
• Diners are complaining that fast food is no longer cheap in America.

Taco Bell says that it is still performing well among low-income customers even as other fast-food chains say they're struggling to keep hold of this demographic.

David Gibbs, CEO of Taco Bell's parent company Yum! Brands, said that the taco and burrito chain's restaurants in low-income trade areas in the US had outperformed the rest of the business.