I'm just a hobby coder. Except for lifetimes and a bit of fighting with the borrow checker, the language came fairly easily for me. After banging my head against the borrow checker for a week or two at some point something switched in my brain and all of a sudden I wasn't fighting the borrow checker anymore. This was spending maybe 1-2 hours a day with rust. I don't often have a lot of time to write code. Everyone has their own experiences, though, and this is just mine.