I LOVE this about Rust. Whenever I'm using another library, if a function I'm calling returns a Result, I know that I need to handle an error condition. With exceptions, you never really know if the code you're calling throws exceptions or not. The explicitness of "yes, this function may return an error condition" is really nice. And if you really don't give a damn about errors, you can just `.unwrap()` everything.
I think this is the most meaningful and valuable thing about it: `Result` gives you a type-level indication of the need for error handling, but in a manner that is sufficiently polymorphic and friendly to handle that it doesn't end up like Java's checked exceptions (which could be seen as a special sub-system of the type system).
The problem with checked exceptions in Java is that many don't design them properly, not everything needs to extend Exception, there is a reason why RuntimeException is there since the early days.
Yes, even the JDK is to blame for misusing checked exceptions.
You can smash ahead with unwrap()s and get something that works. And then when you want to make it reliable, you know where to look. It's like the language forces me to put in those "// TODO"s my code would otherwise be full of..
