Yeah, that's what I meant by "immediate result", if you need to edit the generated model by hand it will be hard to beat having the model and timeline available in Fusion after using Fusion MCP.

If you just need to tweak the dimensions in the script, or are satisfied with describing the changes to the LLM and having it modify the script, there isn't much difference in practice between a generated OpenSCAD script and a Blender python script.