We've been building every application with Elixir and Phoenix since 2015. As a spiritual successor to Ruby on Rails, it was created with productivity in mind. For a RoR company, such as ours, it was an obvious choice. Thanks to the fact that Elixir and Phoenix is built on top of Erlang Virtual Machine (a technology behind most telecommunication networks), we are able to build lightning fast APIs, error-resistant services and real-time features in a way, that was not possible before. The nature of the framework allowed us to reduce overall development time in projects built with this technology. Additionally, Elixir server distribution and automatic error handling ensures almost non-stop uptime of the system.