I just got it and though I haven't put it on my machine (it is still a work in progress) I like it. I spent a weekend viewing these videos.
After that I was able to simulate with mach3 and cncsimulator a part of my own design. I like the cut and past aspect of the path tree a lot. For 2-1/2d this is a good program.
I will admit that I had to push through a few functions to for me to understand how they worked or why I hadn't set something up correctly, but overall it suits my needs.
I must say that I have not used the cad module except to define the contours or parts before using the milling module. (this was one of the understandings I learned)
I have use another program which I am already familiar with to generate the dxf files.