Definition: In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
Input: My boxes must have been defective, they do not want to burn correctly, only half of it will light and burn. They hardly crackle. I have been using duraflame for the past three years and this was a bad batch.

I have been using duraflame for the past three years and this was a bad batch.