Coats is NOT able to be used in my Pfaff. I have seen (not my machines), it KILL a machine (motherboard). You do better with other brands, even when you pay more (you don't have the high cost of machine repairs). I have uses for hand quilting and it was just fine, but at the price of repairs on my Pfaff I just don't want to push it. I have used Coats on my small machine (Wards special 28 years old & it still does THE BEST!!! button holes - my Pfaff SUCKS at all 8 button holes). Coats works in the NON computer machines.