I've owned this vacuum for a year.I have a german shepherd who sheds constantly, a long haired cat, and I live in the country in an area with a lot of fine dusty dirt.I was extremely pleased with its cleaning power initially, but am ultimately very disappointed in it. It tends to clog constantly, spit back dirt on hard floors, and steadily lost suction. I cleaned the filters after each use -- the problem really seems to be one of poor manufacturing quality.After 6 months of weekly use it performed poorly. After 9 months the motor began shrieking like a dyspeptic banshee (it's not the belt). The vacuum finally gave up the ghost and I can buy a new one in good conscience.Not that I think anything else will do much better or last much longer. I did a lot of research and read a lot of reviews before I bought this one.Bissell 3910 Momentum Bagless Upright Vacuum Cleaner