Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DIFFICULT to operate

This product adds meaning to the phrase not user friendly. None of the functions are intuitive. I started a job that required the use of this and the guy that had used it for 3-4 years had great difficulty in showing me how to use it. He is a computer wiz that creates web pages, he is also a DIY carpenter that completely rehabbed his own home. In short he can do just about anything except easily operate this timer.(The only reason I gave this one star is because it was impossible to give NO stars.)