In my experience, Elixir is one of the easiest languages to pick up and get stuff done quickly. It has excellent tooling and deployments ARE 10X cheaper (if not more). I've never converted a project to Elixir and not had the associated costs decrease dramatically.

Also, I don't find typing to be an issue in Elixir due to the way the language works (pattern-matching, guard clauses, immutable data, etc.). Maybe I just have a talent for remembering types, though, because strong typing has always been a huge meh for me.