Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't work

I got this machine a couple days ago hoping to make ice cream. After following the instructions carefully and chilling the canister for 24 hours, I plugged it in, and 40 minutes later I had a few ice crystals in the mixture. Thinking I'd done something wrong, I refroze the canister after turning down the thermostat on my freezer to make it even colder. I also made sure the mixture was chilled to just above freezing before trying again. After 30 minutes mixing, I had a soupy mess with big grainy ice crystals in it, but not ice cream. I'm going to return this and get something from a different manufacturer.