Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Oxo Can Opener Is Not Durable

I bought this can opener at the end of April from Amazon because of the great customer reviews. We were very happy with it until about a month ago (so after 4.5 months). Even before that i had noticed that a slight, brown rust spot was starting to develop where the cutting blade holder is welded to the bottom of the lower arm. I figured it was not hurting anything functionality wise. But about a month ago we pulled it out of the drawer and the gears would not turn no matter how hard we turned the knob. After inspecting it, it turned out that the top gear would not move at all. It does not look rusted but I suspect that perhaps some water went inside and rusted the mechanism shut. Now it's just in a drawer until we toss it. About a month ago I got the "Amco Swing-A-Way 407WH Portable Can Opener, White" from Amazon at a lower cost to replace it, which functionally is working just as well for us as the Oxo did; hopefully the durability will be much better.