I have set up the Amazing box for someone with an older Brother. It works. I use Babylock's Cardworks. (No longer available, now the Amazing box)
I have a Pfaff 2170 and Cardworks wrote for both that and a BL Ellure. The Pfaff uses an odd-sized card, but most of the other machines use the smaller one.
If you get the box, it usually has transfer software to show and write your designs to a card for the machine. You can reuse the card over and over.