With two samoyed dogs, our need for a superior vacuum outweighs any other cleaning product that we buy. Therefore, the Shark products have always been our go-to choice due to the flexibility, reliability, and excellent productivity of the product. Our recent Navigator Swivel Pro is probably my favorite vacuum we have had because of the way it maneuvers and transitions between wood floor and carpet with such ease.  The fact that the corners of my home contract the floating bundles of dog hair and is now no match to the suction of the Shark Navigator.  I love that the larger canister can completely fill and I still have strong suction to finish the entire house in one step.  The lightweight feature makes the job effortless and clean up manageable.