I took a look at this online and cannot imagine what you would use one for that you do not have tools for already.
My initial impression of this was the fruition of a plot to sell basically worthless tools to people.
I have a cordless jigsaw, a cordless recip saw, a miter saw, a table saw, a manual coping saw, a cordless trim saw, and a manual hack saw. I would not spend any money on this. Being that I do not have a good feel for exactly what you do, this advice may not be much good.
Best wishes,
Jay
