We’ve used Phoenix for 5 years for an important internal project in a large tech company. We don’t do a ton with Phoenix itself, it’s just a simple MVC web app for managing a more complicated Elixir thing. No Liveview or even Ecto, for instance. But it has worked just fine.

We push Elixir to its absolute limits, though, and after years of being on call for a production Elixir system, I’m still totally in love with it. Plenty of experience with Ruby, Python, PHP, Java. Elixir is a game changer. If I build basically anything in the future it will be in Elixir. And it will probably need some kind of web interface, so that will definitely be Phoenix.