Very interesting concept and fast too. If I interpret the advertisement correctly, you buy one unit for a family of calibers in each application. Like all .30-06 based cases (25-06 270 280 etc.) use one unit and the .308 base family uses another.
If this is the case, it is cheap for a power case trimmer if you do not need many individual units. One downside is it seems to be currently limited in overall case selection.
I use a RCBS manual & power trimmer and I do not get the erratic results that the video showed for the Hornady manual trimmer. Will be interesting to hear input from any actual users here.
Ken