I love Cloud Station and its associated pieces like Quick Connect. I've used it several client situations. It has fewer syncing issues than the next most reliable cloud storage product - DropBox. OneDrive For Business is the worst. OneDrive consumer is extremely reliable. Google Drive is nearly tied with DropBox.
But Cloud Station is remarkable. It just works. Synology has to start beefing up documentation with better videos. Cloud Station is hard to grasp for the new comer.