Mach 3 software or another program?

[Ger21]

The difficulties start to come up with advanced features, toolchangers, light bars, multiple toolposts, css, high accuracy threading etc.

Or, when you run into any of the well documented bugs that will never be fixed.

To be fair, most people never run into these bugs. And Mach3 is used by far more people than it's competitors. But the competition has passed it by.