Given the task definition and input, reply with output. 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.

Storage capacity is great! Very well built, seems to be durable overall. The only problem was that it has missing one of the end cap bolt, so I had to go and buy one.
4