I have the SNC wireless machine but haven't used that feature. I can send the applique cut files from embroidery machine designs to USB and then cut them out with the SNC. There is on line software that you use and create designs. The designs stay in the cloud and not on your computer.
The new SNC versions auto set the cut depth. That alone takes out a huge curve for learning how to set depths for different materials. Honestly, I haven't worked much with my machine to learn how to navigate it very well. There are many tutorials for it though on the web.
You are wise to research the different machines. I will add, don't skimp on cost if you find the one with features you need.IOW don't settle for less than...even if you have to save up.
Good luck with your decision. They are certainly fun!
PS: If you have a local dealer they may offer classes. Our local shop has 2 classes each month.