Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Even when it's free

I just got my kindle (wich i love why the way!) and i saw this book featuring for free! I thought it was a nice way to introduce myself with the author, but to my horror when i was reading the first 10 pages i decided it was a waste of my time and deleted it from my device... very dissapointing, even when it's free!