Instruct: Classify a given Amazon review as either positive or negative.
Query: Good...unless you need customer service

I recently broke my stoneware insert. If this happens to you, just go buy another crockpot, DON'T try to replace the insert. The Rival people sent the wrong size twice, as well as a bunch of other things I had not ordered, and when I asked for my credit card to be refunded, they did not respond. Luckily my credit card company was more helpful, or I would have paid for that stuff! I kept trying with them until my letter to the Rival president received no response--then I went out and bought a Hamilton-Beach. It's great, by the way....