In my own recent experience, Julia is awesome but documentation could be sometimes clearer (eg. missing examples with each method, missing cross references). Also, when searching for details on some features, it's hard to figure which version someone is talking about, it seems some versions (0.6 for example) were there for ages and most forums refer to it but some stuff is now deprecated or replaced.

Otherwise, I would probably use it for everything now given the performance and the very good FFI story.