We have owned several accessory kits and this is the best we have found. We have a fairly large house and this is the second set we have bought, so we don't have to drag just one unit over the whole house. Everything fits together very well and as others have said, the swiveling power head is a great feature. Basically, we love this set, but the only thing that stopped us from giving 5 stars is the hose itself. Usually, at least once while being used, the hose buckles and cuts off the air vacuum and if the plastic hose had been made of a slightly heavier grade, this would not have happened. We have another cheaper set that we are discarding, but the hose is stronger than this Centecsystems hose. However, overall this is the best set out there and the easiest to use.