We call it the ‘Holle effect’: when Holger Schweitering aka Holle rates kebabs, burgers and other fast food and new catering concepts in his YouTube videos, he can make the difference between the success and failure of recently opened restaurants. His legendary rankings have caused huge queues on more than one occasion. Around 400,000 people now follow the ‘Michelin Guide for Gen Z’ on YouTube - and Holle is far from having had enough.
