I converted my (profitable) side-project to Elixir because I fell in love with the language. While I still like it, that has mostly worn off and I regret rewriting it for the most part.
I still think Elixir/Phoenix/LiveView are great technologies, but I don't think they offer me anything professionally that the current stuff doesn't; at least not for my use cases.
There was an opportunity cost to making the switch too, and I feel like that was a poor use of time.