Just me personally, I probably wouldn't do it in anything else... Not that there aren't some other good options out there depending on your background. I just prefer Elixir, I know it scales in both maintenance and performance (the former being the more difficult goal in my mind) I think the market is growing such that finding engineers who a) have experience, or b) want experience with it, won't be a real problem. I can tackle software and hardware problems alike, there are good options for integrating native code when performance counts, and in general I consider it to be the safest option available to me.
I use it for my own small startup + my work uses it as well. Couldn't recommend it hard enough. Elixir 1.5 (just released) improves Developer Experience and makes things a little easier to debug.
Highly recommended, but as always ignore the hype/recommendations and do your own research.