Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very disappointed

I bought it in November for Thanksgiving, and it was amazing. I was so impressed that it allowed me to make some salad in 3 minutes so I recommended it to many of my friends. However, last night I wanted to make some cucumber salad and that was only the second time I used this salad shooter, but the power switch didn't work, maybe it got stuck or something. I liked it so much I thought I shouldn't give up so easily, well, this morning I tried it again, and went through the instructions book and still couldn't figure out why it doesn't work anymore. I'm so sad that I have to return it, :( it still looks brand new, but just doesn't work.