Seems pretty cool. But C++ is notoriously hard to Hot-Reload. It has to be seen if this truly works for all possible configurations and for big codebases. In the times of MSVC Hot Reload it stopped working after a few little configuration changes.
shouldn't that be Clion?
No, Rider is also a C++ IDE but it's focused on gamedev. Live++ is mostly meant for gamedev, it only works on Windows.