[bitwalker]

I recently started programming in Elixir. I chose to rewrite the customized Hubot instance I'm running at my company from the ground up in it - it's been a great way to learn the language, and especially OTP.

OTP is really what makes Elixir (and Erlang for that matter) so impressive. Supervised, lightweight processes just seems so obvious as a solution to fault tolerance and concurrency - coming from C#, where doing multi-threaded programming is error-prone at best, Elixir/OTP is a dream. I do miss the type system from C# or Scala, but type specifications help to mitigate the loss.

The one other feature that has been really pleasing to work with is pattern matching. Scala is the only other language I've used with some form of it, and after using Elixir/Erlang's pattern matching, Scala's seems deficient in comparison. It's an insanely powerful construct, I wish more languages had it.