I've gotten so comfortable designing in qcad that it's my default tool for new projects. But qcad is 2d only. So lately I've been forcing myself to use HeeksCAD more. I still find the UI to be a bit clunky but I'm getting better at it. I'd love to see some quick tool bars for things like snapping and selection.
I'm going to build a touch probe so I can play with some of the other HeeksCNC operations. Here's the design I drew in HeeksCAD based on this page