Here's a subtle thing I like about Rust.
Rustc has what are, in my opinion, best-in-class error messages. Several people have written crates for generating error messages like rustc.
As a result, most Rust tools I'm running into, particularly those that parse a language, have error messages roughly as good as Rustc. Like the (still-experimental) Filament HDL, whose error message are already yards better than Bluespec: https://filamenthdl.com/docs/lang/tutorial.html
I <3 good error messages.