Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: >> KINDLE << BROKE DOWN 4 TIMES RIPOFF POOR QUALITY

IT HAS BROKEN FROZE UP TWICE MORE FOR A TOTAL OF 4 BREAK DOWNS THEY STILL WILL NOT ALLOW US TO RETURN FOR A REFUND.. YOU ARE SOOOOO SCREWED IF YOU OWN ONE OF THESE!!!!IF THERE WAS A LOWER RATING I WOULD USE IT ..BOUGHT THE KINDLE FOR MY WIFE LAST CHRISTMAS AND IT HAS BEEN REPLACED TWICE WHEN THE DATE OF THE ORDER LAST DECEMBER COMES UP THERE IS NOTHING ELSE WE CAN DO EXCEPT TAKE THE HIT OF 289.00 LOSS ... TRIED TO GET THEM TO SWITCH US TO THE LOWER PRICED 3G, 6" AND NOT ASK FOR A REFUND OF THE EXTRA 120.00 I PAYED FOR THE 1ST ONE AND THEY REFUSED!!!!!AVERAGE OPERATION TIME BEFOR COMPLETE SYSTEM FAILURE IS 5 MONTHS AND OURS HAS QUIT 2 TIMES IN 10 MONTHS AFTER ONE YEAR FROM PURCHASE DATE THERE IS NO LONGER A REPLACEMENT OPTION !!!!!!!!!!!!!!!!!DO NOT BUY THIS PRODUCT !!!!!!!!!!!!!Kindle DX Wireless Reading Device, Free 3G, 9.7" Display, Graphite, 3G Works Globally ' Latest Generation