Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible Customer Service

I received this knife for Christmas and recently broke it while doing a straight-down cut through cheese that was frozen in the middle.The lead customer service rep at Shun, named Brittany, said "This is not a chef's knife - it is ONLY for cutting fruits and vegetables. Not meats or anything else." Thus, they will not honor the lifetime warranty on the knife.I'm extremely unimpressed and will not buy another Shun knife again, and although it was nice for the 3 months it lasted it doesn't seem to be as hardy as a true chef's knife.