Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked great until .........

I have had my All-Clad slow cooker for four years and it has worked great. I am really careful about never putting in frozen foods and always let it cool before washing the insert. Yesterday I heard a loud snap while it was cooking and didn't think much of it until I served our soup and discovered the insert has a crack all the way across the bottom and up one of the sides. I'm so disappointed! After reading all the reviews about cracked liners I won't get a replacement so - - I'm on the search for another cooker. The first one I had in the early 70's lasted 17 years and I'm wondering if it was made in America?? :)P.S. When you're reading all the reviews please note the date written. You will find most of the older reviews praising the slow cooker and then more recent ones will tell you the real story of how inferior the liner has become. Save your money.