Case Study: GRUMMAN '78 achieves personalized guest experiences and higher customer retention with Lightspeed

Grumman ‘78 - Customer Case Study

Grumman '78 is a popular taco restaurant in Montreal’s Saint-Henri neighborhood, founded by Gaelle Cerf and housed in a converted fire station. Despite a strong reputation for friendly, efficient service, the restaurant struggled to collect and act on customer data—so it couldn’t personalize experiences, follow up on negative reviews, or reliably make returning guests feel engaged, empowered, and heard.

By adopting Lightspeed, Gaelle gained real-time access to customer information—preferences like favorite wines and even names—and the ability to reach out after poor experiences. That capability let her mend relationships, personalize service, and turn customer data into immediate action, strengthening guest loyalty and making service a clearer competitive advantage.

GRUMMAN '78

Gaelle Cerf

Founder