I’m fairly new to elixir, but the two things I liked the least were having to use asdf to get a working version of it that didn’t fight with the language server, and really the language server not being particularly smart or fleshed out. It’s not catastrophic, but there are many other languages that are much smoother. Particularly the auto-formatting leaves a lot to be desired. Thankfully these really aren’t existential problems because the language itself is so pleasant to use.