I learned it a while back during some huge hype and put it down for a while after slow, minor, painful success. I recently came back and it feels much improved, and my troubles with the borrow checker seem to finally be something I have overcome. I think it will continue to be loved.

There was a real improvement to the borrow checker to make it use non-lexical-lifetimes. The practical implications were the borrow checker being much better at reasoning about mutually exclusive borrows between branches.