Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked, but not for as long as I wanted...

Bought it about five to six months ago. Worked for fine for that amount of time. Now it doesn't work. It makes a strange noise, and makes a VERY bad smell. Don't know much about vaccums so I don't know what the problem is, but I expected a vaccum that costs this much to last much longer...