Instruct: Classify a given Amazon review as either positive or negative.
Query: very poor quality for OXO

I love OXO products and own almost every product, but these knives are very poorly made. I had three sets, and the handles eventually came off on all six knives- very unsafe! Some handles slipped off, and some snapped off. I'm surprised OXO is still making and selling these knives, because the poor quality really tarnishes their reputation.