I use mine---not a featherweight but a full size model---because unlike my newer machines, I can sew all day with it and not have to stop to fix weird things....like clumps of thread on the back and that kind of annoyance! Mine is a 1941 that was a gift from a neighbor couple that was moving back in 1981 or so and didn't want to take this heavy "portable" with them. I had the footpedal and motor replaced a few years ago, and she doesn't make bobbins any more (I bought one of the little bobbin makers...) but I can binge sew with absolutely no problems.