I actually really like the OpenSCAD language; I've even started to prefer OpenSCAD to Fusion360 for sketching ideas in recent years. It is very easy to import

I actually really like the OpenSCAD language; I've even started to prefer OpenSCAD to Fusion360 for sketching ideas in recent years. It is very easy to import modules for operations like threaded holes or gear teeth, and it feels very familiar if you are coming from a graphical CAD tool like Inventor or SolidWorks because it follows the same process of generating parts from a nested series of elementary operations. I've never felt frustrated trying to write parts, but to be fair, I also don't use it for serious manufacturing.