Sure, this was a few years ago. Don't get me wrong, I liked it, but all the other existing and new engineers on my team have expressed a lot of concern about the entire paradigm shift and that Elixir was unnecessarily complicating things in terms of implementing simple logic. A lot of junior engineers also have been unhappy with the kind of shift going away from the traditional procedural/oop styles. If I was working on a solo project, I would pick Elixir over Rails any day. The LSP server and tooling alone makes it stand up very strong.