Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I love how portable it is

It's one of the best purchases I've made in a long time. I thought it over for awhile as I love books and librarys. But the Kindle is so easy to carry around and traveling will be a snap. I've already loaded on serval books for a two week trip and won't have to cart around books anymore. I also love a "sneak read" in a checkout line. It goes so much faster!