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

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
Had this for 3 years. It isn't much to look at, doesn't heat as strong as Delonghi TRD0715T i own. But worst of all it started to leek on the second year. ..Not recommended..
Answer:
Negative