I have a 401 a 403 and a 503. My neighbor has a 500 that I would love to steal. Can't even hear it running. And she rarely uses it. Mine all have issues that I haven't been able to work out so far but they run. I also want a 301 just because its light. The Featherweight is cute and if I run across one cheap I will get one. But not craving one a lot.
My workhorses are a Kenmore and a Household.