I've written a non-trivial amount of Elixir. It's nice, but I wouldn't say it's like Ruby. It's more heavily functional, and it wants you to work with data in an immutable way. If you're coming from a language that doesn't force immutability, then you'll be miserable until you get your head around how to work that way.

I really like it, though. Especially now that it's getting optional typing.