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.

The BEST investment I've ever made for ginger. It's unbelievable! It's fibrous like the real ginger, has that spicy kick to it, but it's perfect with the sugar - calms it down. It's very worth the $40 for 5lbs of it! I'll be getting more soon - I use these as a topper for my ginger cupcakes and cookies :)
5