The first time we used this, we were horrified at how much it picked up. We thought we might need to empty the cup every month or two, but instead had to empty it twice after vacuuming our home which is an average sized 3-bedroom house. Apparently our old vacuum was in worse shape than we thought. We don’t have pets in the house but track in dog hair from the garage where the Lab’s kennel is located. The rotating brush attachment works great on the stairs. I highly recommend.—UPDATED 11/22/20—BROKE ON 3RD USAGE. Canister broke & it won’t turn on. This product is over engineered. We’re going bag to a traditional vacuum with a bag.