Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Be SURE you need it . . . there's none better!

I am a piano technician and bought this little puppy to clean inside pianos in client homes. Easily portable, fits easily in my trunk and has all the attachments I need. Power? You want power? I'm convinced that if someone accidentally hooked one end of the hose to the vacuum port and the other end to the blower port, a serious time warp could occur.