Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Works great for about 5 months....

I previously had a cordless vac that lasted about 2 years. I was upset that it only worked for such a short time. However, this model only worked well for 5 months. First the brush stopped rotating and then the suction declined. I have 2 dogs and love vaccuuming quickly throughout the house daily. I will try another cordless-I just won't get my hopes up high.....