I have a Kenmore Sewing machine. I had one for almost 40 yrs. and had problems with the bobbin. Fixed it and went ok for a short time and then did it again. Thread got tangled up underneath the fabric. also sometimes it would almost freeze up. I purchased a Singer and returned it as did not like it at all. When I returned it they said they had a lot of returns for the Singers recently. I went to Sears and purchased another Kenmore and loved it !!! Feed dog drops down and can hit button for needle to end up down in fabric when you stop plus auto threader etc. It is great.
Eisgoow