Instruct: Classify Amazon reviews into positive or negative sentiment
Query: awful phone

DON'T buy this phone. RIZR z3 is a worst phone I have ever used. The camera is so called 2MP, it is a joke! The picture taken at best resolution is still bad and no auto focus. The reaction of the phone is very very very slow. Signal is very bad. At the same office, my old Nokia phone has full bars of signal but this phone got almost no signal. So far, the power button has a problem and the phone was turned off by itself very often and the screen is out of order. There are a lot of white lines on the screen.Finally, I would say, this phone is just a piece of juke!