The document summarizes the author's experience attending a 4-day training course on administering OneStream applications. They were happy with the sessions led by John Rodgers and believed OneStream is a great tool for consolidation, planning, reporting, and documentation. However, they realize correctly implementing OneStream requires care to avoid restricting users or overburdening administrators with updates, and there is still more to learn about how all its components work together. They plan to start by replacing their existing HFM tool with OneStream and then gradually expanding its use over time.