Q: In this task, you're given a review from Amazon. Your task is to generate a rating for the product on a scale of 1-5 based on the review. The rating means 1: extremely poor, 2: poor, 3: neutral, 4: good, 5: extremely good.
I bought two units. After less than two weeks of daily use, beverages left in containers up to six hours tasted metallic, triggering nausea and vomiting. I returned both items. They look great, but my I will never buy this product again, and will caution my friends to avoid this brand.
A:
1