Instruct: Classify Amazon reviews into positive or negative sentiment
Query: buyer beware

I bought this umbrella back in May. Because I carry a small umbrella in my bookbag, I opened it only 4 times. The canopy will not open. I can pull out the "catch" with oil and pliers but would have to do so every time. So it is now just expensive trash. I had been an Amazon customer since its concept but I guess they are to big now to worry about keeping a loyal customer