Sylius development has started together with one of the early alpha releases of Symfony framework. 5 years later it is the most promising competitor to existing solutions of the mainstream market, like Magento. From the age of 18, I have built my entire professional career on Symfony. This allowed me to work on countless projects. I have seen Symfony in action on very small web projects, high availability websites, complex APIs and 14 year old legacy systems. I have integrated various Symfony applications, combining Sylius with eZ Platform, Akeneo PIM and existing custom apps. In this talk I’d like to share everything I have learned during this journey. I show real world examples of projects, share solutions to both technical and more business-related problems and prove that Symfony is one of the greatest communities and projects that ever existed. This talk is supposed to be a retrospective of Symfony evolution from my perspective and knowledge-feast for the attendees.