Instruct: Classify the given Amazon review as either positive or negative.
Query: great carrying system, affordable

I drove 1800 miles on high-speed interstate and in varying weather (sun, snow, heavy rains, wind gusts) with three pole vault poles in a canvas carrying bag on my Chevy HHR. I believe that this system is an affordable solution. The plastic part that hooks onto the window concerned me at first, but now I'm confident that they will withstand our next 1800-mile trip. We'll try a PVC tube instead of the canvas bag. The rubber straps have two notches for varying diameters and I believe they will hold up well.