Instruct: Classify Amazon reviews into positive or negative sentiment
Query: inferior quality

I've had pretty good experience on items purchased through Amazon. But this one came as quite a surprise. First of all, the material and workmanship looked very cheap. We didn't use it right away. By the time we decide to try it on our dog (couple of weeks after we received the product), we realized that one of connectors was broken. We figureed it was not worth the money and effort to return, I just throw the whole thing away. I'm curious if I bought a totally different product from those who gave 5 star reviews.