I received The Swiffer 360 Dusters Starter Kit  a little over a week ago and immediately put it to use.  Soon as I opened the pact one of the first things I noticed was how small the Duster Covers were. We live in a large older model  house with lots high ceiling fans so I just knew these little buggers were not going to get the job done, well to my surprise they did!! I was able to clean 3 large dusty ceiling fans before having to change the cover. Since I am short the extendable arm was a great feature. I was able to reach on top of the fridge and even  a few blinds. The thing is when the Duster covers get too dusty they stop picking up dust and sort of just move it around.I wish it came with different size cloths or washable ones so you dont waste  a lot. i think this is a really great item.