Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

The product exceeded my expectations. With my computer on high performance mode, the battery still lasts more than four hours.
Positive Review

This kindle is amazing! I bought it for my wife for Christmas. She loves it! It works as advertised. It is easy to use. Instructions are easy to follow. Start up was fast and easy. It is a great product with plenty storage. My wife loves the many available apps and software and books.
Positive Review

I bought this product back in December '07 and have yet to get it to work properly. The player is very slow and loses signal, or has to re-buffer constantly. It can't even get through an entire song without stopping a couple of times, then it just freezes and requires a restart. I've installed the newest firmware, but that hasn't fixed anything. Customer support assumes that I'm an idiot and that it's my fault that the media player isn't working right. It'll sometimes let me stream Rhapsody music through it, but then decides to stop working. The USB port works only periodically as well. Wish I would have taken this back a long time ago.
Negative Review