Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: I've been using Guitars for a while and while this model looked good initially, it deteriorated very quickly there after. Only after 1 month of light-use (2-3 hours a week), it started degrading. The grip of the strings started to loosen up and no matter how many times you tighten it up it always loosens immediately on playing and causing a weird tone while strumming. That is not how a good guitar should function!

Poor Durability; strings are not up to the mark and loosely built