I purchased a Miele S8 Kona today. Thanks to everyone on the site for all their insight in helping me select a vacuum that will meet my needs. My question is whether or not anyone has any experience with the 3M Filtrete G/N replacement bags made for Miele vacuums. On Amazon the comments seem pretty favorable with people noting the absence of the trap door that the manufacturer's filter has to keep dust in when the bag is removed. I suspect careful handling upon bag changing can deal with this missing item. At less than half the price of the Miele bag it seemed worth a look. Does anyone have any experience or comments regarding the 3M filtrete bags for the Miele.