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.

I rather like the unique design of this bookcase and it's sturdy as hell. Be aware, though, the screwdriver that comes with it is somehow weaker than the screws (which are, themselves, robust). I got about halfway through before the head of the screwdriver wore down too much to continue. As long as you have a decent extra lying around, you'll be fine.
4