What I love in Elixir

Pipes

No need to have ugly nested calls or chains – just pipe the data through functions.

Patters on function calls

You do not need to have conditions within the functions anymore!

Guard Clauses

http://elixir-lang.org/getting-started/case-cond-and-if.html#expressions-in-guard-clauses

References

Getting started
Mix and Otp
Try Elixir