I have a 20 year old Pfaff creative 1471, and the only problem ever (which I now know is a chronic Pfaff problem) is that tiny pieces of thread can jam the machine and cannot be cleaned out at home. It costs me 120$ about yearly or more to get the repairman to get the thread out so I can continue sewing. For my next machine I think I will get a Bernina with an oscillating bobbin.