Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best Invention Ever!

I am so happy with this purchase I barely know what to say! I love books and when I first heard about this I didn't think it would ever replace the real deal for me. I have limited space in my house to store all my favorite books and that's what prompted this purchase. Now I'm hooked!So, here's a list of my favorite things about the Kindle:1. Easy to use. (At first I was a little intimidated but the user tutorial that comes on the Kindle was fabulous!)2. Dictionary that is accessed by simply moving the cursor to the word. (Absolute favorite!)3. Size of the Kindle.4. Ease of getting books.5. Personalization settings like font and screen direction.6. Being able to take notes as I read. (I keep a running list of vocabulary words....I can't help it I love big words!)