The CoordiNet project within Horizon 2020 programme aims to demonstrate how Distribution System Operators (DSO) and Transmission System Operators (TSO) can act in a coordinated manner to procure and activate grid services in the most cost effective and reliable way. With 4 GWh of traded flexibility during winter of 2019/2020, the Swedish demo sites constitutes one of Europe's largest local flexibility markets for congestion management. The paper presents the experience from interviews with fifteen flexibility providers participating in the markets. Together they provide flexibility from a wide mix of different technologies including district heating, generation from waste disposal, aggregated consumer load, industrial heat pumps, gensets and residential housing blocks. Fifteen resource owners have made the journey to become flexibility providers. Understanding their experience and needs will help DSO develop products and business models for flexibility services as well as getting insight in the practical hurdles that hinder network customers to become a flexibility provider (FSP). The results from implementation of the platform, user interface, learnings on stakeholder interaction and initial evaluation of first two years operation of the market is also addressed.