No hesitation giving this vacuum five stars considering the overall product, the price, & how it performs. It is lightweight therefore easy to maneuver up & down stairs. Easy on the back for general cleaning. The suction is remarkably powerful given the vacuum's weight & size. I've read that bagless vacs aren't the best because they spread small particles. I have allergies & would have a reaction if significant amounts were escaping in the air. After vacuuming, I'm always amazed at the amount of particles in the canister! I empty it outside then use leaf blower to blast out residual dust from canister & filter.