We are using Phoenix in production at a multinational retailer that handles millions of transactions per month. So far it has been a fantastic decision and an absolute pleasure. It’s the most reliable part of the stack in terms of uptime and speed. It’s also cheap to run and maintain. We’re migrating chunks of our ERP (extremely complex system built around SAP) to Phoenix, and the results have been consistently positive.
Although, the one thing I miss from working with Rails in the larger ecosystem.
