Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A great first E-Ink machine

Kindle is easy to use (as long as you are a US citizen, copyright issues make it unusable anywhere else). I have downloaded five books, read two, plus the new york times every day. Suffice it to say that it is easy to read on the screen. Changing fonts is a snap. Overall a usable and efficient machine.Unfortunately it has frozen on several occasions, needing a hard reset, an easy but cumbersome procedure. You do not lose any books in memory with this procedure.I would like a night setting so I can read it in subdued light. Maybe reverse the font so that letters are white and background black? The buttons to turn the "page" or go back are too large and easy to press by mistake. A clamshell design would help to protect the screen more. But in general kudos to the kindle!