I feel like my experiences are in sharp contrast to many others here.

I love Elixir the language but find myself still having to throughly review new libraries to avoid footguns. In particular with "connectors" -- DB drivers, API clients, basic protocol implementations, etc. And resolving those issues normally means fixing them ourselves, often with a significant refactor to someone else's library. And in turn that's meant some of us having to become fairly proficient with Erlang.

So while I'm optimistic about the future of Elixir there are still some pain points that I think relate directly to the immaturity of the community.