I agree it is incredibly fun! All of the hard work put into BEAM plus the easy-of-use of Ruby and the joys of functional programming make for a wonderful developer experience.
The only issue so far is that the libraries ecosystem is indeed quite young but that is natural.
Still, Ruby (even without Rails) is at the moment a more productive environment.
I really hope Ruby "3x3" [0] will be released soon enough and projects like Hanami [1] become production ready so that it can coexist in a complementary way rather than becoming replaceable.
[0] - https://blog.heroku.com/ruby-3-by-3
[1] - http://hanamirb.org
We're starting new projects in Elixir. We haven't ported anything from Ruby to Elixir yet, but we have a 9 year old ~100k lines of code (not counting views/tests) Rails app that we could make an argument to extract some functionality from.
But, yeah, I don't often stump for people around here but Pete is good people to work with if you're looking. I would rather have fire ants poured in my pants than do web work, but I'd jump at the opportunity to work with him again and if you're looking, you could do a lot worse.
Elixir for the services and Node for the client/frontend is how we're rolling now. I don't think any of the Ruby guys want to go back.
While we're not against Ruby - and as I said, we still use it - at our scale Elixir is much more performant & scales better.