This question has come up a few times, so you can search to get other opinions.

My own is rust can be conquered with enough patience and time, but because of the high entry costs it will always remain a niche language.

I've written C and C++ professionally, also used Go and Rust on hobby projects. Rust, by far, was the hardest to learn and get something useable out of it. Because of that, I would never recommend someone put it into production unless they have a very specific use case that Go could not handle. The onboarding costs would be just too much.

I do like the concepts behind it, and thought it would be the answer to Go's limitations in expressiveness.

I do still hold out hope for it though. I think with the right tooling and development environment it could one day become useable, just like Java and C++ benefited.