A long time ago I sold Cutco knives. I made great money. I didn't own any then and I've never bought any since. I don't have the car I bought with the money I made either, so I guess it's an even deal. None of the people I ever sold to ever came after me, and some of the women are even friends of mine still. As far as I know, their warrantees hold true. For whatever it's worth, a lot of people are happy with Cutco.
(I've got a lot of posts. I'm not a Cutco shill.)