I have a 62D and it's a good machine. As Candace said, it does have a couple of nylon gears that can fail, so there's that and if you pay to have it replaced, it will be expensive. The other common failure is the L-shaped molded plug that fits into the side of the machine. I received mine free from someone because it "didn't work" (and hadn't for years) and the owner had replaced it with a Singer years earlier. The problem was the faulty plug. All the places I found online for replacements were $50+ just for the cord, but I checked at a local sewing repair place and purchased a cordset for $15, hooked up the old pedal and she was good to go. Cleaned and oiled, she sews beautifully. My only complaint is the feed dog cover plate which tends to try to flip up when I use it for heavier items.
It does make beautiful decorative stitches with cams. You can find the cams on e-bay but they tend to be expensive (and popular).
I need to get it out and use it again.