In my post notice that aside from my personal background with programming I didn't go into detail about memory safety, which seems to be what many are debating. Frankly, it's not even one of my top reasons for praising the language. If I had to pick three these are what I'd choose:
1. Strong features for describing real-world issues in software. Here I'm talking about things like tagged unions (enums). They let you describe so much very cleanly. Use a match expression on it and you can be sure you've handled it pretty well. These lead into the stdlib's Result and Option types which extend what I said further.
2. Excellent performance without any fancy language stuff like annotating lifetimes. Using the Iterator trait you can chain up a really nice operation FP-style and get ridiculous performance. It takes fewer lines than idiomatic Python.
3. Excellent tooling. Cargo is easily the best package manager I've used (yet, someone show me better!). When doing async work the tracing crate is great, it automatically handles all the entry and exit points of the state machine that gets generated. You can also use tools like tokio-console on it, or export via opentelemetry.