I have owned a number of shark vacuums and every single time I get a new one and I give a review... I tend to believe it just cannot get any better. But this one is by far the best. The unique beater bar set up allows this vacuum to get all of the fine dust particles and hair. I have 7 cats, 5 dogs, 2 birds, 2 rabbits and a guinea pig in my house and we sure do have a lot of hair and dander here. I can vacuum my floor with a standard vacuum and come up with plenty, but if I go over it again right away with the Shark pet ADV upright ... it will somehow end up with 1/4 to 1/2 a canister full. Please do you and your family a favor and get this amazing vacuum.