Instruct: Classify a given Amazon review as either positive or negative.
Query: Buyer beware

When I installed the rooftop cargo carrier for the first time, two of the PLASTIC locking clips broke. I used bungie cords as substitutes.The bag is made of heavy duty weather resistant material.Loading for the return trip, one of the zipper pull tabs broke. I used the other ziper pull tab to zip the bag shut. When I arrived home, the second zipper pull tab broke. I'm contacting the manufacturer to return the product for a refund.