This seems to be more than just a parametric 3D drawing program (at least based on a quick look at a tutorial). The workflow seems to be heavily constraint based. You make a bunch of connected lines of no particular orientation and dimension and then specify a bunch of restrictions on what sort of thing is possible. Eventually you end up with your design based on a bunch of tiny specifications.

Strikes me as different than something more drafting oriented like Freecad. It's more like a type of 3D breadboard.