I have been exceptionally surprised and thankful for the coroutine implementation in C++ and its early adoption in Visual C++ compiler (MSVC). UI and I/O code (

I have been exceptionally surprised and thankful for the coroutine implementation in C++ and its early adoption in Visual C++ compiler (MSVC). UI and I/O code (particularly for Windows) is much easier to both write and comprehend. The stack traces are clear and error handling is simple. I have professionally worked in many async (and synchronous) languages, and the implementation of async in modern C++ is my favorite. That is weird to type out, but it's true. I'm really enjoying modern C++, but I do follow almost all the rules you list.