I don't know anything about Pfaff sewing machines, but I have a Husqvarna Viking Designer I that I bought in 2000, and it has electronic issues, goes crazy sewing on its own if it is used for 2 hours at a time. When I inquired about getting it repaired they told me it would cost about $2000. I decided that was a good time to change manufacturers and get a new machine. I now own a couple Babylock machines. No one wanted the Viking for a trade-in, so it sits in a corner in case I need an "emergency" machine. For the cost of repairs I got a Babylock Katherine with money to spare.