I gave credit insofar as language features, hygienic macros and pipe ops are both wins in my book. Which libraries and tools do you think set Elixir apart? Do

I gave credit insofar as language features, hygienic macros and pipe ops are both wins in my book. Which libraries and tools do you think set Elixir apart? Do you prefer it to erlang (I've seen you in #elixir-lang ;)?