The older Pfaff machines that were designed and manufactured in Germany (sometimes West Germany) are known for their strength, durability, built-in dual feed system, and front-loading bobbin. Part of the reason they were so strong and durable is because of their front-loading bobbin system, which utilizes an industrial-style hook assembly. It’s a beautiful system, and one of the reasons so many people still love that older generation of Pfaff machines.
If you are thinking about potentially getting a new machine, Dan recommends that you consider the Bernina 570. The B570 is designed with a similar front-loading bobbin/hook system as the old Pfaffs, and it is also designed with built-in dual feed. In addition, the B570 is an extremely powerful and durable machine, whether you are crafting, quilting, or making clothes.