I'm sure people who write negative comments are honest about their experiences but I have to say I've been using these bags for over 2 years and they're great a lot of. I have a Miele Olympus canister. Bags fit perfectly, never ripped, torn or scattered. I vacuum my 2,800 sqm. ft. I have 2 small dogs and 4 adults, 3 females with lots of hair all over. Cape Cod, with summer sand and winter boots and boot gear. The material isn't the same as Miele bags, but who wants to pay $35 for a pair of bags when you can get $15 for half the price? Not me.