Detailed Instructions: Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.
See one example below:
Problem: I was very surprised at the high quality of the stitching, the sturdiness of the handles and the padding for my laptop. The price is amazingly low and the look is very good. I am quite happy with this purchase. It fit my MacBook Pro perfectly, with a little bit of room to spare.
Solution: Positive Review
Explanation: This rating is correct based on this review provided by the user as they liked the product very much and they were surprised that product is so good.

Problem: I believe this is an excellent case. It's a snug fit on the 2012 MacBook Air. Very durable plastic material, but doesn't draw a lot of attention to itself. The expandable feet on the bottom of the case are extremely convenient, and very helpful for typing. With this case on my laptop, I don't feel the computer is going to slide around everywhere.<br /><br />After reading several positive reviews, I purchased the case for my mid-2012 MacBook Air. Unfortunately, I received one of the older cases with the annoying \"clicking\" defect. The older cases have a defective piece, which catches against your laptop's screen.<br /><br />In response, I contacted iPearl. They quickly sent me a free replacement bottom piece. The new bottom piece of my case looks great, and works well. I must give credit where it's due - iPearl has awesome customer service!
Solution:
Positive Review