Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

[EX Q]: Had no luck, even with latest firmware, getting the unit to resume any of my audio books. I tried changing the tags on the mp3 files but it did not work. The unit would go into auto shut off and then force you to start your audio book file from the start every time.
[EX A]: Negative

[EX Q]: I bought this from the same co. before christmas and was stunned that the price had doubled. On the page the price was not clear!
[EX A]: Negative

[EX Q]: While this book has a wonderful visual collection of stunningly beautiful books and journals, it offers virtually no guidance on how to "make" them. The advice on putting together a complicated book with non-linear pages is limited to 3 steps, with no list of supplies and vague instructions. Poorly edited, there are many grammatical mistakes or typos. Buy this book for inspiration, but not for instruction.
[EX A]:
Negative