Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great cordless vac, lightweight & powerful!

Great for people who don't want to wrestle with a big, heavy, clumsy vac. Good for hardwood, ceramic tile, and carpet as well. Cordless feature is the best...you don't have to charge the vac, just the plug in battery pack! And you can do that anywhere, leave the vac in the closet and charge the battery elsewhere! An LED on the pack tells you it's charging. Combine this with a bagless system, telescoping handle, and powerful suction, and you have one of the best vacs in its class.