I'd always been curious about it but never really took the plunge. How well does it scale? Have you built any significantly complex applications with it?
I work on the app mentioned in the podcast. It is roughly 600k lines of Elm. I have previously worked at bigger, more well known companies, on apps 1/3 the size if not smaller. I've seen more frequent, and more reliable refactors in this Elm code than any I've worked in before. I'd easily take 1M lines of Elm over 100k lines of any JS framework, and I've worked with most of them.