We purchased this for our large sectional and cars.  It did an excellent job on the couch.  It had plenty of power and the battery lasted throughout the time.  So far the battery has not run down or has not decrease its suction during use.  We would recommend this vacuum.  There were some negative reviews but that always happens and any thing built by man can be defective.  So we are not dissatisfied with our choice. If you purchase one we hope you are as satisfied as we are.