I could not live without my built-in walking foot on my Pfaff 2144! It's always there when I need it and easily moves out of the way when I don't want it. It's called the IDT (why I don't know, since the initials have nothing to do walking foot). It's so great for matching plaids, sewing slippery fabrics perfectly, sewing heavy fabrics together, and on and on. The built in walking foot has been on Pfaffs for many years - my mother had one on her Pfaff 1221 and that's a lot of years ago!

This video isn't working properly - it keeps stopping and it takes anywhere from 15 to 45 seconds to restart. I couldn't get through it to the end.