Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't touch it

easy fail to work, it did out of order twice within the first 6 months!for the 1st time, the customer service told me I have to pack the machine for return to repair, but they won't provide any boxes and packing material. you know, packing this kind of big heavy thing well is kinda head-ache!for the 2nd time, I was told to input a set of commands to resume the machine to service. well, no problem. But, I don't know why Sharp didn't mention these kind of commands in the instruction book. I'd rather read the instruction book than waiting long for the service HOTline!