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

[Q]: On a number of occasions, it had been suggested that I read this book, and I must say I'm very glad I did. I got very involved, as the writing was so wonderfully descriptive. Having said this, I don't think it was arduous to read all that detail, which sometimes makes reading a book feel a bit of a chore. I would recommend it to anyone!
[A]: Positive


[Q]: This product does not work with my ibook G4. As stated by some earlier reviews by other customers, the charger toggles between charging and not charging. Occasionally, if it is left on, it will continuously charge. I thought about keeping it, but it is unreliable and there are other third party options for $10 more.This one is going back to Amazon.
[A]: Negative


[Q]: I bought this adapter for my 12-inch G4 powerbook, one of the computers listed as compatible with this AC adapter. The specs all match up and it SHOULD work. But it didn't. The power would fluctuate and the computer would go back and forth between AC power and battery power, making the screen flicker and the battery never charged. I contacted MacAlly and they said they're aware of the problem but don't have a solution. Their answer to the problem was to return it, which I did.If even MacAlly admits it doesn't work, they really shouldn't keep selling it. All I can do is say don't buy this AC adapter.
[A]:
Negative