In addition to my reply above about code-weaving, rather than the all or nothing approach that some code generation techiniques suffer, our tool allows proposed

In addition to my reply above about code-weaving, rather than the all or nothing approach that some code generation techiniques suffer, our tool allows proposed changes to be reviewed before you commit with writing the generated code to your disk. This allows developers to feel in control of what's changing in their code base during generation, rather than being worried that some custom code is going to get wiped out by code-gen without them realizing. In a past project I was on, we had our solution build process run T4 templates to generate code, and it significantly slowed down the build process. We feel code generation is something you explicitly do when you're "modelling", it's not something that's necessary to create a build nor should it create run-time dependency.