Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT BUY THIS-READ MY REVIEW FIRST!!

I bought one for my son at Christmas and it broke after a month. It just suddenly wouldn't turn on. Amazon was great with sending a replacement in just two days, before even getting the original back. But the replacement model "froze up" after just 4 days and this time I am getting a refund. To quote an e-mail from Amazon regarding this product "As it seems that the problem with this item is more widespread thanwe originally thought, we are not able to send another replacement." So, DO NOT order one!!