This vacuum is AWEFUL! Worst Shark purchase of my life! Total waste of money. The battery doesn’t last long enough to complete even one floor at a time. It dumps dirt out of the little white flap whenever it decides to randomly open which you don’t realize until you’ve been vacuuming for awhile and realize you’re been throwing dirt EVERYWHERE the whole time and when you realize it’s too late bcuz the battery is dead so you can’t even clean it up until you wait for it to charge. I tried buying a new battery so we have an extra to finish the floors, but for months I’ve had no such luck. The whole thing is super frustrating. I don’t think the sensor is working anymore either. I’ve only purchased Sharks my whole life but after this experience I will be looking at other options unless Shark takes this thing back and shows me a better one.