I haven't read anything about Kenmore machines. I have been using them for years (and years) of sewing and I have no complaints whatsoever..I purchased one of the upper line just about a year ago....and I really do love it.
I did purchase a maintenance contract with Sears for a two or three year term.
It covers almost everything and annual full service jobs.
I take the machine to their local shop and it is transferred to their maintenance or repair shops and returned in usually a week......
I am pleased as can be with my machine.......and have no complaints.......
Can't find a company that has been in business much longer than Sears.....no can we?