I have the opposite experience. Even in production builds, I get Elixir stacktraces, and they're exceptionally helpful. Macros only save me time and LoC, I think maybe once I've struggled with a macro-caused issue (and it was immediately apparent that macros were the issue).

ExUnit has been hands down the most impressive testing library I've ever worked with, and the debugging, profiling, analytics, introspection, observability, etc of the BEAM is unbeatable.

Documentation of elixir, elixir deps, and elixir code is also far and above any language I've ever seen.

And the struggles I had supporting minimal concurrency in python were completely alleviated - so even if you don't need massive concurrency, elixir has a good chance of massively simplifying anything that needs minimal concurrency (which is probably most web related projects).