Given the task definition and input, reply with output. In this task, you're given a review from Amazon's food products. 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 or mixed, 4: good, 5: extremely good.

work OK. main problem they leak out the top a bit as well as inside the machine. is it worth the extra work? it is if you want to pay a fraction of the cos of a k-cup. plus you can use any coffee you desire.
3