I'm an embedded software engineer and into 3D printing useful/functional things. I've made a lot of cool complicated stuff with OpenSCAD. There's a lot of problems that are solved nicely in code. For example, I made a two stage 80:1 gear box for a force feedback steering wheel project, and I fully parameterized the gearbox geometry based on the tooth count, gear metric, and extrinsic mounting constraints. As a result, I could very easily try out different ratios and metrics across the whole assembly.

It's sometimes more painful to use code for quick "all I need is a funny shaped..." projects. Some projects really benefit from having a for loop, though.