Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best can turn to worst!

When I got the ZEN, it was great but some times it would freeze.then after about a year, the screen turned orange! And now I can see anything on the screen!....When downloaded some music and then listend to it THE SONG WEREN'T ON THERE, AND OTHER SONGS OF MINE WEREN'T ON IT EITHER!!!!I don't no if it was just mine or everyone's but if it I know not to buy this product anymore!:(