How is the elixir job market these days?

You can find specialized roles than Rails and usually more experienced (understandably) but most companies would be really open if you told them you have a Rails background but want to learn Elixir.

The pool size is less, but the pay is more (depending on your demographics, experience, etc) in my personal experience.

But, honestly I chose it not for the market, it's just a better programming language to build stuff, period.

Elixir is nice but the console feels like the Stone Age by comparison. That drives me a little crazy

I have the opposite opinion - give me stone age over the colored christmas lights anyday :)

It's terribly painful to go and have to import everything you want to use when you want to use the Elixir console. That alone makes it not worth it to me.