Using Elixir here for a couple of months, for an app backend, and even for shell script type of projects. Great language, no surprises, and very responsive community -- really, my biggest wish is for more people to try it, as I think it's still relatively niche. Had no previous Erlang experience. While you don't have to write Erlang code itself, you'll over time become familiar with Erlang/OTP architecture concepts, such as GenServer, ETS, distributed nodes, and so on.

Was very happy to see this recent post from Pinterest [1] as a sign that some of the more "mainstream" teams are starting to look at it.

Also, a repost [2] of some helpful tips if you're just getting started.

[1] https://engineering.pinterest.com/blog/introducing-new-open-...

[2] https://news.ycombinator.com/item?id=10278870