The video tutorials they provide are top notch, but even without them using Vcarve is so intuitive you use 90% of it's capabilities just by clicking on the icons in the interface.
The only real issue I have with it is that it remembers the settings from the last time you used it, So if you changed the zero point to the work center for a special project, then you start a new project and don't think to reset the zero you will get a nasty surprise when you start the cut.
I have put a sticky note on the wall to remind me to check the zero location before I save the gcode.