There is a comparison between Live++ and Visual Studio's Edit-and-Continue here: https://liveplusplus.tech/faq.html

In our (and many of our customers') experience, E&C doesn't work for anything larger than simple toy projects. It just isn't reliable.

On top of that, I think its biggest shortcoming is that E&C doesn't work with optimizations at all (this is documented), and is tied to the Visual Studio IDE, which not everybody uses.