Had two Singer machines. One is a Featherweight I've had since 1965. It's never given a minute's problem.
The other I bought about 5 years ago, was sewing along recently and started smelling something, like hot wiring. Sure enough, the motor was fried. I just took off the still usable parts and threw it in the dumpster.
I bought another Singer, hope it lasts longer than that one. So far, so good.