They’re in no way “lovin’ it.”

McDonald’s franchisees say the launch of all-day breakfast has been a disaster — griping that it has slowed down service, lowered average bills and sparked chaos in the kitchens.

Mark Kalinowski, an analyst for the Japanese finance company Nomura, surveyed 29 operators overseeing 226 different locations in the US and found that many were pulling their hair out due to the new menu options, which rolled out last Tuesday to much praise from Egg McMuffin lovers.

“In small stores, the problems are vast with people falling over each other and equipment jammed in everywhere,” one franchisee wrote in response to Kalinowski’s survey.