I have two...
Great machine. The most quiet stitching of any machine I have. The thread tension can be a challenge if not totally clean. Sew with as little tension as needed. Oil it well. They love to consume oil more than the average machine. I hope you have to cams and button hole cam. The machine is belt driven, and you should check it for wear. I believe I used a standard belt for it and it worked fine. Let me know if you need the manual. It is truly a GREAT machine.