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'm biased as my company (Bleacher Report) uses it extensively for this exact purpose but yes: do it. It's great.
It's used by fairly big projects/Companies bet365, Bleacher Report, New Relic,Discord, PagerDuty, Puppet labs, FireEye etc.
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.
I will. The only risk is finding devs - there are too few that know elixir. Not hard to switch though ;)