I have the Pfaff 7550 and bought it in Germany at the local military post exchange (PX) in 1998. It has traveled with me to many other states and when I finally went to work on it last year I noticed that the foot raiser was broken. Took it to the dealer and they fixed it and the motherboard works well however I think there is a problem with the bobbin case. I've considered selling it but it is an awesome machine and will not part with it. My local Pfaff dealer told me its a sought after machine because of the workmanship and I agree however she tol me I could sell it for $400! I told her no nicely! Its worth it for the older Pfaff's however I'm considering purchasing a new Pfaff, love their IDT, but am now concerned that many have had some problems.