for me it was the Pfaff 7570, and once I finally got one I was too scared to use it, what if some thing went wrong with it? then I would not have my dream machine any more, so I got a back up. another 7570, then got 2 more back up, all Pfaff 7570's so in all I have 4 of them, and one is waiting to go to the Pfaff shop to get fixed, as yep some thing happen to it, what I don't know it just quit. But SO glad I have the 3 other backups!