Enums are the best part of the Rust language IMO, so I’m not sure how you can view them as ugly. Having the choice to destructure something is fantastic. You generally aren’t required to destructure every return value. Make sure you’re using the ? operator as much as possible. If destructuring is getting in your way, it sounds like the code is not very idiomatic.

I can’t really comment on your issue with nested if and match. Too much nesting is bad in any language; try extracting more functions and let bindings to make it more readable.

You can enable a clippy lint to deny .unwrap() if you’re worried about it.