The document summarizes the experience of a company that adopted the Large-Scale Scrum (LeSS) framework for product development over several years. It started with two teams using basic Scrum practices and grew to include multiple offsite teams. Key lessons included: transitioning from common planning to representatives as teams grew; introducing requirement areas but realizing areas were too small; and the importance of training, coaching, and management support for sustainable agile adoption. Overall, LeSS enabled faster development and release cycles through improved collaboration.